WO2011102293A1 - ポリアスパラギン酸前駆体ポリマーおよびポリアスパラギン酸塩の製造方法 - Google Patents
ポリアスパラギン酸前駆体ポリマーおよびポリアスパラギン酸塩の製造方法 Download PDFInfo
- Publication number
- WO2011102293A1 WO2011102293A1 PCT/JP2011/052858 JP2011052858W WO2011102293A1 WO 2011102293 A1 WO2011102293 A1 WO 2011102293A1 JP 2011052858 W JP2011052858 W JP 2011052858W WO 2011102293 A1 WO2011102293 A1 WO 2011102293A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyaspartic acid
- precursor polymer
- tertiary amine
- producing
- acid precursor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1092—Polysuccinimides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/10—Alpha-amino-carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Definitions
- the present invention relates to a method for producing a polyaspartic acid precursor polymer useful for producing polyaspartate, and a method for producing polyaspartate using them.
- the polyaspartate produced according to the present invention is useful as a chelating agent, scale inhibitor, detergent builder, dispersant, fertilizer additive, and the like.
- Polyaspartic acid and its salts are known as biodegradable water-soluble polymers that are compatible with the environment, and are expected to be substituted for chelating agents, scale inhibitors, detergent builders, and dispersants for industrial use.
- it is known to be effective as a crop growth promoter when mixed with fertilizer, and also has value as an insecticide and fungicide.
- Non-Patent Document 1 discloses that polyaspartic acid having a molecular weight of 10,000 is obtained by hydrolyzing aspartic acid at 200 ° C. for 2 to 3 hours to obtain polysuccinimide.
- a method of manufacturing is disclosed.
- aspartic acid is polymerized in a fluidized bed with stirring at a temperature of 180 ° C. or higher in a nitrogen atmosphere for 3 to 6 hours to obtain polysuccinimide, which is hydrolyzed to produce polyaspartic acid.
- Patent Document 2 discloses a method for producing polyaspartate by heating aspartic acid to 200 to 230 ° C.
- Example 1 a polyaspartate having a weight average molecular weight (Mw) of 24,000 is obtained.
- polyaspartic acid having a Mw of 10,000 or more and a salt thereof can be produced relatively easily.
- polysuccinimide does not melt and solidifies, so there is a trouble in the process such as using a special apparatus for pulverizing it or using a high boiling point solvent for suspension polymerization. is there.
- the point that the aspartic acid as a raw material is expensive is also disadvantageous as an industrial production method.
- Patent Document 3 discloses a method of obtaining polysuccinimide by heating maleamic acid at a temperature of 160 to 330 ° C.
- Patent Document 4 maleic anhydride is reacted with aqueous ammonia in an aqueous solvent, and then heated to a temperature of at least 170 ° C. to obtain polysuccinimide, which is subjected to base hydrolysis to obtain polyaspartate.
- a method of manufacturing is disclosed.
- polysuccinimide needs to be taken out by a method such as reprecipitation, and the process is complicated. Moreover, the Mw of the polyaspartic acids described in the examples is about 2000. Furthermore, since the polymerization temperature is high, the coloration of the polymer is also a problem.
- Patent Document 5 a reaction product of aspartic acid or maleic anhydride and ammonia is thermally polymerized in an aqueous solvent, and polyaspartate is obtained by hydrolysis.
- a polymerization temperature of 150 to 300 ° C. is necessary, a high-pressure reaction occurs, and a reactor for high-pressure reaction must be used.
- the polymerization temperature is high, the coloration of the polymer is also a problem.
- Patent Document 6 Patent Document 7 and Patent Document 8 polymerization of a reaction product of maleamic acid or maleic anhydride and ammonia is performed by a continuous polymerization apparatus, and the resulting polysuccinimide is hydrolyzed to obtain polyasparagine.
- a method for obtaining an acid salt is disclosed.
- these methods require special polymerization equipment to overcome the difficulty of bulk polymerization.
- Patent Document 9 discloses a process for producing polyaspartic acid by hydrogen transfer polymerization of maleamic acid or a reaction product of maleic anhydride and ammonia in the presence of a vinyl polymerization inhibitor and a basic catalyst.
- maleic acid is polymerized in a tetrahydrofuran solvent in the presence of hydroquinone using sodium t-butoxide or sodium hydroxide as a catalyst to obtain a polyaspartic acid having Mw> 20000.
- Mw tetrahydrofuran solvent
- polysuccinimide is generated also in this reaction, and it is necessary to take out by reprecipitation. Such complicated operations are unavoidable.
- An object of the present invention is to provide a method for industrially inexpensively and easily producing polyaspartate from a reaction product of maleamic acid or maleic anhydride and ammonia.
- the present inventors have obtained an excellent effect by using a specific type of monomer as at least one monomer selected from an inexpensive reaction product of maleic anhydride and ammonia and maleamic acid.
- the present invention has been completed.
- the present invention relates to a method for producing a polyaspartic acid precursor polymer that is polymerized by using at least one selected from the reaction product of maleic anhydride and ammonia and maleamic acid as a monomer, and the method comprises the step of producing a carboxyl group in the monomer.
- the present invention is a method for producing a polyaspartic acid precursor polymer, wherein water or an aprotic polar solvent is added when the monomer is polymerized in the above method.
- the present invention is a tertiary amine salt of maleamic acid which is a novel compound.
- the present invention is a polyaspartic acid precursor polymer obtained by the above method.
- the present invention is a method for producing a polyaspartate, characterized in that the polyaspartic acid precursor polymer obtained by the above method is treated with an aqueous base solution.
- the carboxyl group in the monomer is converted to a tertiary amine salt.
- a polymerization reaction in a molten state which has been difficult in the past, becomes possible, and a high molecular weight polyaspartic acid precursor polymer can be easily produced without using special equipment.
- the polymerization viscosity can be further reduced by adding water or an aprotic polar solvent, and therefore, a wide range of general-purpose equipment can be used.
- a polyaspartate having an excellent hue can be easily produced by treating the precursor polymer with an aqueous base solution.
- the tertiary amine after use can be easily recovered by a usual method, it is a very effective production method from an industrial point of view.
- FIG. 2 is an IR chart of Example 1.
- FIG. 2 is an NMR chart of Example 1.
- 6 is an IR chart of Example 3.
- 6 is an IR chart of Example 4.
- 10 is an IR chart of Example 5.
- 10 is an IR chart of Example 6.
- 10 is an IR chart of Example 7.
- 10 is an IR chart of Example 8.
- 6 is an IR chart of Comparative Example 1.
- At least one selected from a reaction product of maleic anhydride and ammonia and maleamic acid is used as a monomer. And it is necessary that at least a part of the carboxyl groups in the monomer forms a tertiary amine salt.
- a reaction product of maleic anhydride and ammonia and maleamic acid can be easily synthesized by a known method. These may be used alone or in combination. Moreover, you may isolate and use, and can also use it as a synthetic-reaction composition, without performing isolation operation.
- the carboxyl group in the monomer can be converted into a tertiary amine salt.
- the tertiary amine is not particularly limited as long as it is a tertiary amine capable of forming a salt with a carboxyl group in the monomer.
- the tertiary amine constituting the tertiary amine salt is preferably the following general formula (1)
- R 1 , R 2 and R 3 each represents a hydrogen atom, an alkyl group which may be substituted with a halogen atom, a hydroxy group and / or an alkoxy group having 1 to 3 carbon atoms, or a hydrogen atom A part thereof represents an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, and / or an aryl group which may be substituted with a halogen atom, which may be the same or different.
- R 1 and R 2 and / or R 2 and R 3 may combine to form a tertiary nitrogen atom or a ring containing a tertiary nitrogen atom and another heteroatom.
- a part of hydrogen atoms in the definition of R 1 , R 2 , R 3 may be substituted with a halogen atom, a hydroxy group and / or an alkoxy group having 1 to 3 carbon atoms.
- the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- alkoxy group having 1 to 3 carbon atoms include a methoxy group, an ethoxy group, an n-propyloxy group, and an isopropyloxy group.
- alkyl group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a tert-butyl group, an n-pentyl group, an n-hexyl group, a cyclohexyl group, an octyl group, and a decyl group. Is mentioned.
- a lower alkyl group having 1 to 4 carbon atoms is preferable in view of availability of raw materials.
- the alkyl group in which a part of the hydrogen atom is substituted include a 2,2,2-trifluoroethyl group, a 2-hydroxyethyl group, a 2-methoxyethyl group, and a 3-chloropropyl group. .
- a part of hydrogen atoms is substituted with an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 3 carbon atoms and / or a halogen atom.
- the “aryl group that may be substituted” may be either an aromatic hydrocarbon aryl group or a heteroaromatic aryl group. In this aryl group, a part of the hydrogen atoms (usually 1 to 3 hydrogen atoms) may be substituted with an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 3 carbon atoms and / or a halogen atom. Good.
- alkyl group having 1 to 4 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group and isobutyl group.
- alkoxy group having 1 to 3 carbon atoms include a methoxy group, an ethoxy group, an n-propyloxy group, and an isopropyloxy group.
- halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- aryl group examples include a phenyl group, a naphthyl group, an anthracenyl group, a pyridyl group, a quinolyl group, a furyl group, and a thienyl group.
- aryl group in which a part of hydrogen atoms are substituted include a 4-methylphenyl group, a 4-methoxyphenyl group, a 3-fluorophenyl group, and a 2,4-dichlorophenyl group.
- R 1 and R 2 and / or R 2 and R 3 may combine to form a tertiary nitrogen atom or a ring containing a tertiary nitrogen atom and another heteroatom.
- R 1 and R 2 and / or R 2 and R 3 are combined to form a ring containing one or more tertiary nitrogen atoms, or include tertiary nitrogen atoms and other heteroatoms. It means the formation of a ring.
- Examples of the ring containing one or more tertiary nitrogen atoms include N-methylpyrrolidine, N-methylpiperidine, quinuclidine, 1,4-diazabicyclo [2.2.2] octane (hereinafter abbreviated as “DABCO”). ), 1,8-diazabicyclo [5.4.0] -7-undecene (hereinafter abbreviated as “DBU”) and N-methylindole.
- Examples of the ring containing a tertiary nitrogen atom and another hetero atom include N-methylmorpholine and N-methylthiomorpholine.
- the tertiary amine constituting the tertiary amine salt is preferably higher in basicity from the viewpoint of easy formation of a salt with a carboxyl group in the monomer.
- the pKa of the protonated tertiary amine conjugate acid in water or dimethyl sulfoxide is 8 or more.
- Specific examples of such tertiary amines include trimethylamine, triethylamine, tripropylamine, di (isopropyl) ethylamine, quinuclidine, N-methylpyrrolidine, N-methylpiperazine, DABCO, DBU, 4- (N, N-dimethyl). Amino) pyridine.
- trialkylamines such as trimethylamine and triethylamine are preferable, and triethylamine is particularly preferable in view of industrial availability and easy recovery.
- the solvent is not particularly limited.
- the solvent include hydrocarbon solvents such as n-pentane, n-hexane, cyclohexane and n-heptane, aromatic solvents such as toluene, xylene, cumene, mesitylene, chlorobenzene and orthodichlorobenzene, diethyl ether, Ether solvents such as tetrahydrofuran, cyclopentyl methyl ether, anisole, diphenyl ether, ethylene glycol dimethyl ether, methanol, ethanol, n-propanol, isopropanol, n-butanol, t-butanol, n-pentanol, n-octanol, ethylene glycol, polyethylene Alcohol solvents such as glycol, dimethylformamide, dimethylacetamide, N-methyl
- the solvent mentioned here includes a liquid medium that does not dissolve the monomer and / or the tertiary amine salt of the monomer.
- the reaction temperature is not particularly limited, but preferably below the boiling point of the tertiary amine to be used, and when using a solvent, below the boiling point of the solvent.
- the molar ratio of the carboxyl group and the tertiary amine in the monomer is not particularly limited. However, it is necessary that at least a part of the carboxyl group is a tertiary amine salt.
- the molar ratio of carboxyl group to tertiary amine in the monomer is usually 1: 0.05 to 1.5, preferably 1: 0.15 to 1.2, more preferably 1: 0.3 to 1. .
- the method of mixing the monomer and the tertiary amine More preferably, the monomer and the tertiary amine can be uniformly contacted by stirring or the like.
- a specific monomer in which at least a part of the carboxyl group is a tertiary amine salt can be obtained.
- this is referred to as “a tertiary amine salt of a monomer”.
- the produced tertiary amine salt of the monomer can be used as it is for the polymerization reaction without isolation. If necessary, it can be isolated by ordinary operations such as filtration and solvent removal.
- the tertiary amine salt of the monomer described above is polymerized.
- the polymer is not a polysuccinimide but a novel polyaspartic acid precursor polymer partially having a tertiary amine salt structure of polyaspartic acid.
- this polyaspartic acid precursor polymer has a clear melting point unlike polysuccinimide, if a polymerization temperature higher than the melting point is set, the polymerization proceeds in a molten state where the polymerization can flow.
- this polyaspartic acid precursor polymer has an ion pair structure with a tertiary amine salt, it is water-soluble, and the polymerization viscosity can be greatly reduced by adding water or an aprotic polar solvent.
- a normal monomer is polymerized, polysuccinimide is formed, and the polysuccinimide does not have a clear melting point and remains in a solid state until thermally decomposed and is not water-soluble. Problems such as consolidation will occur.
- a part of the carboxyl group in the monomer may be a tertiary amine salt.
- a higher proportion of the tertiary amine salt is preferred because the melt viscosity during polymerization is lowered.
- 5 mol% or more of the total number of moles of carboxyl groups in the monomer is a tertiary amine salt, preferably 15 mol% or more is a tertiary amine salt, more preferably 30 mol% or more is a tertiary amine salt. Salt.
- the polymerization reaction can be performed in the presence or absence of a solvent.
- a solvent is not particularly required, but there is no problem in using a solvent for improving heat transfer uniformity and heat dissipation efficiency.
- the solvent mentioned here includes a liquid medium that does not dissolve the raw materials and / or the polymerized product. Examples of the polymerization method using a solvent include solution polymerization, suspension polymerization, and two-phase polymerization.
- the solvent is not particularly limited as long as it does not adversely affect the reaction.
- the solvent examples include hydrocarbon solvents such as toluene, xylene, cumene and hexane, halogen solvents such as dichloromethane and chloroform, ether solvents such as diethyl ether, tetrahydrofuran and 1,4-dioxane, ethyl acetate and acetic acid.
- hydrocarbon solvents such as toluene, xylene, cumene and hexane
- halogen solvents such as dichloromethane and chloroform
- ether solvents such as diethyl ether, tetrahydrofuran and 1,4-dioxane
- ethyl acetate and acetic acid examples include ester solvents such as butyl, and aprotic polar solvents such as acetonitrile, N, N-dimethylformamide, dimethyl sulfoxide, N-methylpyrrolidinone, and 1,3-dimethyl-2-
- a solvent that hardly dissolves in water such as a hydrocarbon solvent or a halogen solvent, is preferable because it can be easily separated by liquid separation when a polyaspartic acid is obtained by treatment with an alkaline aqueous solution.
- a solvent that hardly dissolves in water such as a hydrocarbon solvent or a halogen solvent, is preferable because it can be easily separated by liquid separation when a polyaspartic acid is obtained by treatment with an alkaline aqueous solution.
- Each solvent can also be used as a mixed solvent in an arbitrary ratio.
- a catalyst can be used as necessary.
- an acid catalyst is not preferable because a tertiary amine salt may be liberated.
- water or an aprotic polar solvent can be added as necessary during the polymerization reaction. Since the polyaspartic acid precursor polymer obtained by the method of the present invention is water-soluble in addition to meltability, the polymerization viscosity can be further reduced by adding water or an aprotic polar solvent. In particular, an embodiment in which water is added is most preferable because the effect of reducing the polymerization viscosity is high and separation is not necessary in the subsequent steps. The addition of water or an aprotic polar solvent can be performed before and / or during the polymerization reaction.
- the amount of water or aprotic polar solvent to be added is not particularly limited, but it is usually preferably 10 to 300 mol% with respect to the total number of moles of monomers to be polymerized (100 mol%).
- the lower limit of this range is significant in terms of the effect of reducing the polymerization viscosity.
- the upper limit value is significant in that there is a limit in improving the effect of reduction and in that a decrease in polymerization rate is prevented.
- water when water is added before the polymerization reaction, it is more preferably 10 to 100 mol% from the viewpoint of preventing a decrease in polymerization rate.
- the total amount of water or aprotic polar solvent may be added all at once, or may be added in portions. For example, an embodiment in which water or an aprotic polar solvent is added at any time as the polymerization viscosity increases is preferable because the polymerization viscosity can be kept low at all times.
- the polymerization temperature is not particularly limited as long as it is a temperature at which the reaction proceeds and is higher than the melting point of the obtained polyaspartic acid precursor polymer.
- the polymerization temperature may be appropriately set according to the type of tertiary amine and the content of the tertiary amine salt.
- the polymerization temperature is usually 0 ° C. to 350 ° C., preferably 50 ° C. to 200 ° C., more preferably 80 ° C. to 140 ° C. If the polymerization temperature is set within an appropriate range, it is possible to prevent the polymer from being colored and to solve the problem caused by the polymer consolidation by melting the polymer at a practical polymerization rate.
- the polymerization time may be appropriately set according to conditions such as the optimum molecular weight of the target polyaspartic acid precursor polymer, the type of tertiary amine, the content of tertiary amine salt, and the polymerization temperature. Usually, it is 1 minute to 100 hours, preferably 5 minutes to 30 hours, particularly preferably 15 minutes to 15 hours. If the polymerization time is set within an appropriate range, the optimum molecular weight of the target polymer can be obtained, the raw material remains little, and the production efficiency is improved.
- the polymerization method may be either badge type or continuous.
- the polymerization apparatus is not particularly limited, and a known apparatus can be used.
- the polyaspartic acid precursor polymer obtained by the present invention is not a polysuccinimide but a novel polyaspartic acid precursor polymer partially having a tertiary amine salt structure of polyaspartic acid. That is, the following general formulas (2) and (3)
- the ratio of the partial structures of the general formula (2) and the general formula (3) is not particularly limited. However, the larger the partial structure of the general formula (3), the lower the melting point of the polymer and the lower the flow start temperature, which is preferable. Usually, the content of the partial structure of the general formula (3) is 5% or more, preferably 15% or more, more preferably 30% or more with respect to the entire partial structure.
- the content of the partial structure represented by the general formula (3) can be determined by calculating the amount of tertiary amine in the obtained polyaspartic acid precursor polymer from the integral ratio of 1H-NMR.
- the molecular weight of the polyaspartic acid precursor polymer can be determined by GPC analysis in which molecular weight calibration is usually performed using a standard substance.
- the polyaspartic acid precursor polymer itself or a base aqueous solution can be used to obtain a polyaspartate.
- the molecular weight of the polyaspartic acid precursor polymer There is no particular limitation on the molecular weight of the polyaspartic acid precursor polymer.
- the weight average molecular weight (Mw) is usually 2000-100000, preferably 5000-30000, more preferably 7000-20000.
- the melting point of the polyaspartic acid precursor polymer is determined by the molecular weight of the polymer, the type of tertiary amine, the content of the tertiary amine salt, etc., but is usually 0 to 200 ° C., preferably 30 to 120 ° C.
- the polyaspartic acid precursor polymer is obtained as a glassy solid by cooling after polymerization.
- a solvent is used during the polymerization, the polymer can be taken out by removing the solvent by an ordinary method such as decant separation or solvent distillation.
- the polyaspartic acid precursor polymer can be treated with an aqueous base solution to obtain a polyaspartic acid salt.
- a base aqueous solution a base having a stronger basicity than the tertiary amine is used.
- Specific examples of the aqueous base solution include an aqueous solution of an alkali metal or alkaline earth metal hydroxide or carbonate.
- an aqueous solution of NaOH, KOH or LiOH is preferred, and an aqueous solution of NaOH is more preferred.
- the concentration of the base is not particularly limited, but a 0.5 to 50% by mass solution is usually preferable.
- it can also process by putting a base or base aqueous solution.
- the amount of the base aqueous solution used may be an amount sufficient to convert the polyaspartic acid precursor polymer into polyaspartate. Usually, there is no particular problem if the number of moles of the base used is in the range of 90 to 120% of the total number of moles of the carboxyl group and the imide group in the polyaspartic acid precursor polymer.
- the temperature at the time of treatment with the aqueous base solution may be a temperature at which hydrolysis of the polymer main chain does not occur, and is usually preferably 10 ° C to 120 ° C.
- the tertiary amine is liberated from the polyaspartic acid precursor polymer by the treatment with the aqueous base solution.
- the liberated tertiary amine can be easily separated and recovered by ordinary operations such as liquid separation, extraction, distillation, and filtration, and can be reused.
- the polyaspartate aqueous solution obtained as described above can be used as it is, but can also be taken out as a powder by means such as freeze-drying. Moreover, it can also be suitably neutralized with an acid and taken out as polyaspartic acid.
- the polyaspartate obtained by the method of the present invention is excellent in the hue of the aqueous solution as compared with the polyaspartate obtained by a usual method.
- the tertiary amine salt of maleamic acid used in the present invention is a novel compound itself.
- the tertiary amine salt of maleamic acid which can be particularly preferably used in the present invention, is represented by the following general formula (4).
- R 4 , R 5 and R 6 represent a linear or branched alkyl group having 1 to 4 carbon atoms, which may be the same or different.
- the measuring method of each physical property is as follows.
- IR measurement Using Spectrum One (trade name) manufactured by PERKIN-ELMER, measurement was performed by the reflection method under the following conditions.
- -Wavelength range 4000 to 400 cm -1
- -Integration count 16 times-Resolution: 4cm -1
- YI value measurement Using a spectrocolorimeter SE-2000 manufactured by Nippon Denshoku Industries Co., Ltd., a 5% aqueous solution of polyaspartate was placed in a transmission measurement cell, and a YI value was calculated from the average of three measurements.
- Example 1 Production of triethylamine salt of maleamic acid> Using a 500 ml four-necked flask equipped with a thermometer, reflux condenser, mechanical stirrer, and dropping funnel, 115 g of maleamic acid was suspended in 200 g of toluene under a nitrogen atmosphere, and 102 g of triethylamine was stirred at room temperature while stirring this suspension. Was added. It was then heated to 60 ° C. and held at that temperature for 2 hours before cooling. Toluene was distilled off from the reaction mass after cooling using a rotary evaporator under reduced pressure to obtain 188 g of a smooth white powder.
- Example 2 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (example of use of solvent)> Using a 500 ml four-necked flask equipped with a thermometer, a reflux condenser, a mechanical stirrer, and a dropping funnel, 80 g of triethylamine salt of maleamic acid obtained in Example 1 and 53 g of xylene were charged in a nitrogen atmosphere and stirred to 120 ° C. The temperature was raised and polymerization was carried out at that temperature for 8.5 hours.
- the slurry was in a white slurry state, but as the polymerization reaction proceeded, a reddish brown molten polymer was produced via a molten salt.
- the polymer was stirred by a stirrer without solidifying.
- 30 g of water was added to lower the temperature to 60 ° C., and 41 g of 50% NaOH aqueous solution was added to carry out the treatment at 60 to 80 ° C. After confirming that the polymer was completely dissolved in water, stirring was stopped and the mixture was allowed to stand to separate into two phases.
- the xylene phase containing triethylamine was removed from the two-phase separation liquid to obtain a 55% by mass sodium polyaspartate aqueous solution.
- the weight average molecular weight (Mw) of this sodium polyaspartate was 12,000.
- Example 3 Production of polyaspartic acid precursor polymer by polymerization of triethylamine salt of maleamic acid> A 100 ml test tube equipped with a magnetic stirrer was charged with 3 g of maleamic acid, 3 g of xylene and 2.68 g of triethylamine (100 mol% / maleamic acid) and heated with stirring in a nitrogen atmosphere. After confirming that maleamic acid was melted as a triethylamine salt during heating, polymerization was carried out at 100 ° C. for 12 hours. During the polymerization, the polymer was in a molten state. Xylene was decanted from the polymer melt and cooled to room temperature to obtain a reddish orange glassy polymer.
- Examples 4 to 8 Production of polyaspartic acid precursor polymer by polymerization of triethylamine salt of maleamic acid (effect of triethylamine amount)>
- Each 100 ml test tube equipped with a magnetic stir bar was charged with 10 g of maleamic acid, triethylamine was added in amounts of 15, 30, 50, 75, and 100 mol% / maleamic acid, respectively, and stirred in a nitrogen atmosphere. While heating. Polymerization was performed at 120 ° C. for 6 hours to obtain polyaspartic acid precursor polymers, respectively.
- Table 1 4 to 8 show IR charts of the polymers obtained in Examples 4 to 8, respectively.
- Example 9 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (example of solvent-free method)> Using a capillary rheometer CFT-500D (trade name) manufactured by Shimadzu Corporation, 0.82 g of triethylamine salt powder of maleamic acid obtained in Example 1 was charged into a cylinder and heated at 130 ° C. for 2 hours. A red-orange polymer in an extruded molten state was obtained. This was treated with 10% aqueous NaOH to obtain a 5% by mass aqueous sodium polyaspartate solution. The Mw of this sodium polyaspartate was 9000.
- Example 10 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid> Using a 500 ml four-necked flask equipped with a thermometer, reflux condenser, mechanical stirrer, and dropping funnel, charged with 60 g of maleamic acid and 53 g of xylene in a nitrogen atmosphere, heated with stirring, and 15.9 g (30 mol) of triethylamine at 50 ° C. % / Maleamic acid) to form a salt. When the temperature was further raised to 120 ° C. and polymerization was carried out at that temperature for 7 hours, a reddish brown molten polymer was produced from the white slurry liquid via a molten salt.
- the polymer was stirred by a stirrer without solidifying. Next, 29 g of water was added and the temperature was lowered to 60 ° C., and then 41 g of 50% NaOH aqueous solution was added and the treatment was performed at 60 to 80 ° C. After confirming that the polymer was completely dissolved in water, stirring was stopped and the mixture was allowed to stand to separate into two phases. The xylene phase containing triethylamine was removed by liquid separation to obtain a 55% by mass aqueous sodium polyaspartate solution. The Mw of this sodium polyaspartate was 11700.
- the obtained foam-like solid was pulverized, treated with an aqueous NaOH solution, and xylene was removed by liquid separation to obtain a 55 mass% aqueous sodium polyaspartate solution.
- the Mw of this sodium polyaspartate was 9500.
- Examples 11 and 12 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (content of tertiary amine salt)> A sodium polyaspartate aqueous solution was obtained in the same manner as in Example 10 except that the amount of triethylamine to be added was changed to 26 g (50 mol% / maleamic acid) and 40 g (75 mol% / maleamic acid), respectively. The state of the polymer during polymerization, the state of the stirrer, and the molecular weight are shown in Table 2 together with Example 10 and Comparative Example 3.
- Example 13 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (example of high molecular weight)> A 100 ml test tube equipped with a magnetic stir bar was charged with 2 g of maleamic acid and 0.88 g of triethylamine (50 mol% / maleamic acid), and heated with stirring in a nitrogen atmosphere. After confirming that the maleamic acid was melted as a triethylamine salt during heating, polymerization was carried out at 140 ° C. for 4 hours. During the polymerization, the polymer was in a molten state.
- Examples 14 to 18 Production of sodium polyaspartate by polymerization of various tertiary amine salts of maleamic acid> A 100 ml test tube equipped with a magnetic stirrer was charged with 3 g of xylene, 3 g of maleamic acid and 15 mol% of various tertiary amines and polymerized at 100 ° C. for 6 hours with stirring in a nitrogen atmosphere. This was treated with an aqueous NaOH solution to obtain an aqueous sodium polyaspartate solution. Table 3 shows the type of tertiary amine used, the pK value, and the molecular weight of the polymer.
- Examples 19 and 20 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (comparison of hue)> A 100 ml test tube equipped with a magnetic stir bar was charged with 3 g of xylene, 3 g of maleamic acid and 15 mol% of triethylamine and polymerized in a nitrogen atmosphere with stirring at 90 ° C. for 15 hours or at 100 ° C. for 12 hours. . This was treated with an aqueous NaOH solution to obtain an aqueous sodium polyaspartate solution. Table 4 shows the Mw of this sodium polyaspartate and the YI value of a 5% aqueous solution.
- Example 21 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (addition of water during polymerization)> A 500 ml four-necked flask equipped with a thermometer, a reflux condenser, a mechanical stirrer, and a dropping funnel was charged with 60 g of maleamic acid and 53 g of xylene in a nitrogen atmosphere, heated with stirring, and heated at 80 ° C. with 26 g of triethylamine (50 mol% / Maleamic acid) was added for salt formation. The temperature was further raised to 120 ° C. to initiate the polymerization reaction.
- the white slurry changed to a molten salt state, and the stirring torque value of the mechanical stirrer was 0.05 N ⁇ m.
- the stirring torque value of the mechanical stirrer was 0.05 N ⁇ m.
- a red-orange molten polymer was formed and the viscosity increased, and the stirring torque value increased to 0.15 N ⁇ m at 2 hours from the start of the polymerization. Therefore, when 6.6 g of water (70 mol% with respect to maleamic acid) was added, the viscosity decreased and the torque value decreased to 0.05 N ⁇ m. Thereafter, polymerization was performed for 6 hours, but the torque value did not exceed 0.1 N ⁇ m.
- Example 22 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (addition of water before polymerization)>
- the stirring torque value during the polymerization did not exceed 0.1 N ⁇ m.
- Mw of the obtained sodium polyaspartate was 8875.
- Example 23 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (split addition of water)>
- the stirring torque was 0.1 N ⁇ m
- the same procedure was followed except that the method was changed to adding 10 mol% each with respect to maleamic acid. Water was added and the stirring torque value during polymerization did not exceed 0.1 N ⁇ m. Mw of the obtained sodium polyaspartate was 10839.
- Example 24 Production of sodium polyaspartate by polymerization of triethylamine salt of maleamic acid (addition of dimethylformamide during polymerization)>
- 6.6 g of dimethylformamide (18 mol% based on maleamic acid) was added instead of water when the stirring torque value reached 0.15 N ⁇ m, and the torque value was 0.14. Slightly down.
- 19.1 g of dimethylformamide (52 mol% with respect to maleamic acid) was added, the viscosity decreased and the torque value decreased to 0.05 N ⁇ m. Thereafter, polymerization was performed in 6 hours, but the torque value did not exceed 0.1 N ⁇ m.
- Mw of the obtained sodium polyaspartate was 9454.
- the polyaspartate produced according to the present invention is useful for various applications such as chelating agents, scale inhibitors, detergent builders, dispersants, fertilizer additives, and the like.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polyamides (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
で表される化合物である。
で表される部分構造の両方を含有することを特徴とするポリアスパラギン酸前駆体ポリマーである。
で表されるマレアミド酸の3級アミン塩が挙げられる。特に、マレアミド酸のトリエチルアミン塩が最も好ましい。
PERKIN-ELMER製 Spectrum One(商品名)を用い、以下の条件で反射法にて測定した。
・波長範囲:4000~400cm-1
・積算回数:16回
・分解能:4cm-1
以下の条件で測定した。
・使用カラム:shodex Ashahipak GF-7M HQ(商品名)
・溶離液:0.1M NaCl水溶液
・カラム温度:40℃
・流量:1ml/min
・検出器:RI
・分子量校正曲線の作成:
プルランの分子量標準品としてShodex STANDARD(商品名) P-5(Mp=5900)、P-10(Mp=9600)、P-20(Mp=21100)、P-50(Mp=47100)を用いて分子量校正曲線を作成した。
BUCHI社製融点測定器B-545型を用い、目視にて測定を行った。
島津製作所製キャピラリーレオメーター CFT-500D(商品名)を用いて、サンプルポリマー0.8gを加熱体にて40℃で5分間予熱し、その後3℃/分にて昇温させながら100Kgfの加重をピストンに加え、溶融ポリマーが流出し始めた温度を流動開始温度とした。ただし200℃を上限とした。
日本電色工業株式会社製分光色彩計SE-2000を用い、ポリアスパラギン酸塩の5%水溶液を透過測定用セルに入れ、3回の測定値の平均よりYI値を算出した。
東京理科機械製の攪拌モーターEYELA MAZELA Z(商品名)を用い、重合中の粘度変化を攪拌トルク値で表した。
温度計、還流冷却管、機械攪拌機、滴下ロートを備えた500ml4口フラスコを用いて、窒素雰囲気下、トルエン200g中にマレアミド酸115gを懸濁させ、この懸濁液を攪拌しながら室温でトリエチルアミン102gを加えた。次いで60℃まで加熱し、その温度を2時間保持し、その後冷却した。ロータリーエバポレーターを用いて冷却後の反応マスからトルエンを減圧下で留去し、さらさらの白色粉体188gを得た。
1H-NMR(DMSO-d6,400MHz) δ1.51(t,6.76H,J=7.2Hz),2.99(q,4.46H,J=7.2Hz),5.82(d,1H,J=13.2Hz),6.15(d,1H,J=13.2Hz),7.39(bs,1H),9.84(bs,1H)
温度計、還流冷却管、機械攪拌機、滴下ロートを備えた500ml4口フラスコを用いて、窒素雰囲気下、実施例1で得たマレアミド酸のトリエチルアミン塩80gとキシレン53gを仕込み、攪拌しながら120℃まで温度を上げ、その温度で8.5時間重合させた。重合前は白色スラリー状態であったが、重合反応が進むと溶融塩を経て赤褐色の溶融ポリマーが生成した。この重合反応中、ポリマーは固結することなく攪拌機によって攪拌されていた。次いで、30gの水を添加して60℃まで温度を下げ、さらに50%NaOH水41gを添加して60~80℃で処理を行った。ポリマーが完全に水に溶解したのを確認した後、攪拌を止めて静置し、2相分離させた。
磁気攪拌子を備えた100mlの試験管に、マレアミド酸3g、キシレン3gおよびトリエチルアミン2.68g(100モル%/マレアミド酸)を仕込み、窒素雰囲気下、攪拌しながら加熱した。加熱途中でマレアミド酸がトリエチルアミン塩となって溶融したのを確認した後、100℃で12時間重合させた。重合中、ポリマーは溶融状態であった。このポリマー溶融液からキシレンをデカント分離して室温まで冷却し、赤橙色のガラス状ポリマーを得た。
磁気攪拌子を備えた100mlの試験管各々に、マレアミド酸10gを仕込み、トリエチルアミンをそれぞれ15、30、50、75、100モル%/マレアミド酸と量を変えて添加し、窒素雰囲気下、攪拌しながら加熱した。120℃で6時間重合させてそれぞれポリアスパラギン酸前駆体ポリマーを得た。各々の重合条件、重合時の状態、および各種物性値を表1にまとめて示す。また、図4~8に実施例4~8で得たポリマーのIRチャートをそれぞれ示す。
トリエチルアミンを添加せず、また重合温度を130℃としたこと以外は、実施例4の方法と同じ条件で行ったところ、ポリコハク酸イミドを得た。重合条件、重合時の状態および得られたポリコハク酸イミドの各種物性値を表1にまとめて示す。また、図9にポリコハク酸イミドのIRチャートを示す。
島津製作所製キャピラリーレオメーター CFT-500D(商品名)を用いて、実施例1で得たマレアミド酸のトリエチルアミン塩の粉体0.82gをシリンダー内に仕込み、130℃で2時間加熱し、ピストンで押出し溶融状態の赤橙色のポリマーを得た。これを10%NaOH水で処理し、5質量%のポリアスパラギン酸ナトリウム水溶液を得た。このポリアスパラギン酸ナトリウムのMwは9000であった。
原料をマレアミド酸に変更したこと以外は、実施例9の方法と同様に行ったところ、重合後ポリマーはストランド状で得られた。また、NaOH水溶液処理後のポリアスパラギン酸ナトリウムのMwは4800であった。
温度計、還流冷却管、機械攪拌機、滴下ロートを備えた500ml4口フラスコを用い、窒素雰囲気下、マレアミド酸60gとキシレン53gを仕込み、攪拌しながら加熱し、50℃でトリエチルアミン15.9g(30モル%/マレアミド酸)を添加し造塩した。さらに120℃まで温度を上げ、その温度で7時間重合させたところ、白色スラリー液から、溶融塩を経て赤褐色の溶融ポリマーが生成した。重合中、ポリマーは固結することなく攪拌機によって攪拌されていた。次いで、29gの水を添加し60℃まで温度を下げ、その後50%NaOH水41gを添加して60~80℃で処理を行った。ポリマーが完全に水に溶解したのを確認した後、攪拌を止めて静置し2相分離させた。分液によりトリエチルアミンを含むキシレン相を除き、55質量%のポリアスパラギン酸ナトリウム水溶液を得た。このポリアスパラギン酸ナトリウムのMwは11700であった。
温度計、還流冷却管、機械攪拌機、滴下ロートを備えた300ml4口フラスコを用い、窒素雰囲気下、マレアミド酸40gとキシレン40gを仕込み、攪拌しながら130℃まで温度を上げた。その温度で4.5時間重合させたところ、白色スラリー液から、赤橙色フォーム状重合物が生成し始め、重合1.5時間で固結して攪拌が止まった。そのまま3時間重合させたが固結状態は解消されなかった。冷却後、得られたフォーム状固体を粉砕し、NaOH水溶液で処理し、分液でキシレンを除き55質量%のポリアスパラギン酸ナトリウム水溶液を得た。このポリアスパラギン酸ナトリウムのMwは9500であった。
添加するトリエチルアミンの量をそれぞれ26g(50モル%/マレアミド酸)および40g(75モル%/マレアミド酸)に変えたこと以外は、実施例10と同様にしてポリアスパラギン酸ナトリウム水溶液を得た。重合時のポリマーの状態、攪拌機の状態、および分子量を、実施例10および比較例3と合わせて表2に示す。
磁気攪拌子を備えた100mlの試験管に、マレアミド酸2gとトリエチルアミン0.88g(50モル%/マレアミド酸)を仕込み、窒素雰囲気下、攪拌しながら加熱した。加熱途中でマレアミド酸がトリエチルアミン塩となって溶融したのを確認した後、140℃で4時間重合させた。重合中ポリマーは溶融状態であった。これをNaOH水溶液で処理し、キシレン抽出でトリエチルアミンを除き、5質量%のポリアスパラギン酸ナトリウム水溶液を得た。このポリアスパラギン酸ナトリウムのMwは14600であった。
磁気攪拌子を備えた100mlの試験管に、キシレン3g、マレアミド酸3gおよび15モル%の各種3級アミンン仕込み、窒素雰囲気下、攪拌しながら100℃で6時間重合させた。これをNaOH水溶液で処理しポリアスパラギン酸ナトリウム水溶液を得た。使用した3級アミンの種類、pK値、ポリマーの分子量を表3に示す。
3級アミンを使用しなかったこと以外は、実施例14と同様に行ったところ、マレアミド酸は重合せず原料回収であった。結果を表3に示す。
磁気攪拌子を備えた100mlの試験管に、キシレン3g、マレアミド酸3gおよび15モル%のトリエチルアミンを仕込み、窒素雰囲気下、攪拌しながら90℃で15時間、または100℃で12時間で重合させた。これをNaOH水溶液で処理し、ポリアスパラギン酸ナトリウム水溶液を得た。このポリアスパラギン酸ナトリウムのMw、および5%水溶液のYI値を表4に示す。
トリエチルアミンを使用せず、かつ130℃で12時間重合させたこと以外は、実施例19と同様にしてポリアスパラギン酸ナトリウム水溶液を得た。このポリアスパラギン酸ナトリウムのMwおよび5%水溶液のYI値を表4に示す。
温度計、還流冷却管、機械攪拌機、滴下ロートを備えた500ml4口フラスコを用い、窒素雰囲気下、マレアミド酸60gとキシレン53gを仕込み、攪拌しながら加熱し、80℃でトリエチルアミン26g(50モル%/マレアミド酸)を添加し造塩した。さらに120℃まで温度を上げて重合反応を開始した。この時点で白色スラリーから溶融塩状態に変化しており、機械攪拌機の攪拌トルク値は0.05N・mであった。さらに、重合の進行とともに赤橙色の溶融ポリマーが生成して粘度の上昇がみられ、重合開始から2時間の時点で、攪拌トルク値が0.15N・mまで上昇した。そこで、水6.6g(マレアミド酸に対して70モル%)を添加したところ粘度が下がり、トルク値は0.05N・mまで低下した。その後6時間重合させたが、トルク値は0.1N・mを超えなかった。次いで、29gの水を添加し60℃まで温度を下げ、その後50%NaOH水41gを添加して60~80℃で処理を行った。ポリマーが完全に水に溶解したのを確認した後、攪拌を止めて静置し2相分離させた。分液によりトリエチルアミンを含むキシレン相を除き、55質量%のポリアスパラギン酸ナトリウム水溶液を得た。このポリアスパラギン酸ナトリウムのMwは9342であった。
水の添加を、重合前のマレアミド酸をトリエチルアミンで造塩した時点で実施した以外は実施例21と同様に行ったところ、重合中攪拌トルク値は0.1N・mを超えなかった。得られたポリアスパラギン酸ナトリウムのMwは8875であった。
実施例21において、水を攪拌トルクが0.1N・mとなった時点でマレアミド酸に対して10モル%ずつ添加する方法に変えた以外は同様に行ったところ、重合開始から8時間で5回水を添加し、重合中攪拌トルク値は0.1N・mを超えなかった。得られたポリアスパラギン酸ナトリウムのMwは10839であった。
実施例21において、水の代わりにジメチルホルムアミド6.6g(マレアミド酸に対して18モル%)を攪拌トルク値が0.15N・mになった時点で添加したところ、トルク値は0.14と僅かに下がった。さらにジメチルホルムアミド19.1g(マレアミド酸に対して52モル%)を追加で添加したところ、粘度が下がりトルク値は0.05N・mまで低下した。その後6時間で重合させたが、トルク値は0.1N・mを超えなかった。得られたポリアスパラギン酸ナトリウムのMwは9454であった。
Claims (16)
- 無水マレイン酸とアンモニアの反応物およびマレアミド酸から選択される少なくとも1種をモノマーとして用いて重合するポリアスパラギン酸前駆体ポリマーの製造方法であって、該モノマー中のカルボキシル基の少なくとも一部が3級アミン塩であることを特徴とするポリアスパラギン酸前駆体ポリマーの製造方法。
- モノマー中のカルボキシル基の総モル数の15%以上が3級アミン塩である請求項1記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- モノマー中のカルボキシル基の総モル数の30%以上が3級アミン塩である請求項1記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- 3級アミンが、プロトン化された3級アミンの共役酸の水中またはジメチルスルホキシド中でのpKaが8.0以上を示すものである請求項1記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- 3級アミンが、トリアルキルアミンである請求項5記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- 3級アミンが、トリエチルアミンである請求項6記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- モノマーを重合させる際に、重合反応前および/または重合反応中に、水または非プロトン性極性溶媒を添加する請求項1記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- 添加する水または非プロトン性極性溶媒のモル数が、重合させるモノマーの総モル数に対して10~300%である請求項8記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- 水または非プロトン性極性溶媒の添加を、分割添加により行う請求項8記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- 水を添加する請求項8記載のポリアスパラギン酸前駆体ポリマーの製造方法。
- マレアミド酸の3級アミン塩。
- マレアミド酸のトリエチルアミン塩。
- 請求項1記載の方法で得られるポリアスパラギン酸前駆体ポリマー。
- 請求項1記載の方法で得たポリアスパラギン酸前駆体ポリマーを、塩基水溶液で処理することを特徴とするポリアスパラギン酸塩の製造方法。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020127021409A KR101411041B1 (ko) | 2010-02-18 | 2011-02-10 | 폴리아스파라긴산 전구체 폴리머 및 폴리아스파라긴산염의 제조방법 |
| CN201180009252.5A CN102753606B (zh) | 2010-02-18 | 2011-02-10 | 聚天冬氨酸前体聚合物及聚天冬氨酸盐的制造方法 |
| EP11744580.9A EP2537876B1 (en) | 2010-02-18 | 2011-02-10 | Processes for production of polyaspartic acid precursor polymer and polyaspartic acid salts |
| US13/579,335 US9096720B2 (en) | 2010-02-18 | 2011-02-10 | Methods for producing polyaspartic acid precursor polymer and polyaspartic acid salt |
| JP2012500572A JP5650194B2 (ja) | 2010-02-18 | 2011-02-10 | ポリアスパラギン酸前駆体ポリマーおよびポリアスパラギン酸塩の製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010033542 | 2010-02-18 | ||
| JP2010-033542 | 2010-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011102293A1 true WO2011102293A1 (ja) | 2011-08-25 |
Family
ID=44482880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2011/052858 Ceased WO2011102293A1 (ja) | 2010-02-18 | 2011-02-10 | ポリアスパラギン酸前駆体ポリマーおよびポリアスパラギン酸塩の製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9096720B2 (ja) |
| EP (1) | EP2537876B1 (ja) |
| JP (1) | JP5650194B2 (ja) |
| KR (1) | KR101411041B1 (ja) |
| CN (1) | CN102753606B (ja) |
| WO (1) | WO2011102293A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627766A (zh) * | 2012-04-05 | 2012-08-08 | 石家庄开发区德赛化工有限公司 | 农业用补锌剂聚天冬氨酸锌的制备方法 |
| WO2019189837A1 (ja) | 2018-03-30 | 2019-10-03 | 三井化学株式会社 | 再付着防止剤及び洗剤組成物 |
| WO2022059486A1 (ja) | 2020-09-15 | 2022-03-24 | 三井化学株式会社 | 粉体化粧料及び化粧料組成物 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819670A (zh) * | 2012-11-16 | 2014-05-28 | 邹金娥 | 一种改性聚天冬氨酸的合成方法 |
| US10464858B2 (en) * | 2015-05-13 | 2019-11-05 | World Source Enterprises, Llc | Non-aqueous organo liquid delivery systems containing dispersed poly (organic acids) that improve availability of macro and micro-nutrients to plants |
| CN108998006B (zh) * | 2018-07-20 | 2021-06-08 | 合肥工业大学 | 一种环境友好的应变响应型荧光超分子材料及其制备方法 |
| CN113999592A (zh) * | 2021-11-29 | 2022-02-01 | 国网山东省电力公司电力科学研究院 | 一种水性环氧带锈防腐涂料、制备方法及其应用 |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935325A (ja) * | 1972-08-03 | 1974-04-01 | ||
| JPS63255261A (ja) * | 1987-04-10 | 1988-10-21 | Katayama Chem Works Co Ltd | マレイミドの製造方法 |
| US5057597A (en) | 1990-07-03 | 1991-10-15 | Koskan Larry P | Process for the manufacture of anhydro polyamino acids and polyamino acids |
| JPH06145350A (ja) | 1992-10-13 | 1994-05-24 | Rohm & Haas Co | ポリスクシンイミドの製造方法 |
| JPH09309952A (ja) * | 1996-05-21 | 1997-12-02 | Mitsui Petrochem Ind Ltd | ポリアスパラギン酸抗菌性金属塩の製造方法 |
| JP2000212277A (ja) * | 1998-12-22 | 2000-08-02 | Natl Starch & Chem Investment Holding Corp | 側鎖多糖類部分を有するアミノ酸コポリマ―及びその用途 |
| JP2000290368A (ja) | 1999-04-05 | 2000-10-17 | Dainippon Ink & Chem Inc | ポリアスパラギン酸の製造方法 |
| JP2000517367A (ja) * | 1996-09-06 | 2000-12-26 | バイエル・アクチエンゲゼルシヤフト | 反復サクシニル単位を有する重合体の製造法 |
| JP3178955B2 (ja) | 1992-12-24 | 2001-06-25 | バイエル・アクチエンゲゼルシヤフト | ポリサクシンイミド、ポリアスパラギン酸およびその塩類の製造方法とこれら化合物の用途 |
| JP2003026802A (ja) * | 2001-07-13 | 2003-01-29 | Mitsui Chemicals Inc | 架橋重合体の製造方法 |
| JP3385587B2 (ja) | 1993-02-22 | 2003-03-10 | バイエル アクチェンゲゼルシャフト | ポリサクシンイミド及びポリアスパラギン酸の製造方法 |
| JP3384420B2 (ja) | 1994-08-26 | 2003-03-10 | 味の素株式会社 | ポリアスパラギン酸塩の製造方法 |
| JP3419067B2 (ja) | 1993-03-02 | 2003-06-23 | バイエル アクチェンゲゼルシャフト | ポリアスパラギン酸の製造法 |
| JP3431154B2 (ja) | 1992-09-18 | 2003-07-28 | ドンラー・コーポレイシヨン | マレイン酸無水物及びアンモニアからのポリスクシンイミド及びポリアスパラギン酸の製造 |
| JP3683064B2 (ja) | 1996-01-29 | 2005-08-17 | バイエル アクチェンゲゼルシャフト | スクシニル繰り返し単位を有するポリマーの製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2486370A (en) * | 1947-08-13 | 1949-10-25 | Eastman Kodak Co | Copolymers of isopropenyl acetate and fumaric or maleic ester-amides |
| US2980701A (en) | 1959-11-05 | 1961-04-18 | Union Carbide Corp | Process for the preparation of isomaleimides |
| DE3626672A1 (de) * | 1986-08-07 | 1988-02-11 | Bayer Ag | Polyasparaginamidsaeure |
| DE4300020A1 (de) * | 1993-01-02 | 1994-07-07 | Basf Ag | Verfahren zur Herstellung von Polymerisaten der Asparaginsäure und ihre Verwendung |
-
2011
- 2011-02-10 WO PCT/JP2011/052858 patent/WO2011102293A1/ja not_active Ceased
- 2011-02-10 CN CN201180009252.5A patent/CN102753606B/zh active Active
- 2011-02-10 US US13/579,335 patent/US9096720B2/en active Active
- 2011-02-10 KR KR1020127021409A patent/KR101411041B1/ko active Active
- 2011-02-10 JP JP2012500572A patent/JP5650194B2/ja active Active
- 2011-02-10 EP EP11744580.9A patent/EP2537876B1/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935325A (ja) * | 1972-08-03 | 1974-04-01 | ||
| JPS63255261A (ja) * | 1987-04-10 | 1988-10-21 | Katayama Chem Works Co Ltd | マレイミドの製造方法 |
| US5057597A (en) | 1990-07-03 | 1991-10-15 | Koskan Larry P | Process for the manufacture of anhydro polyamino acids and polyamino acids |
| JP3431154B2 (ja) | 1992-09-18 | 2003-07-28 | ドンラー・コーポレイシヨン | マレイン酸無水物及びアンモニアからのポリスクシンイミド及びポリアスパラギン酸の製造 |
| JPH06145350A (ja) | 1992-10-13 | 1994-05-24 | Rohm & Haas Co | ポリスクシンイミドの製造方法 |
| JP3178955B2 (ja) | 1992-12-24 | 2001-06-25 | バイエル・アクチエンゲゼルシヤフト | ポリサクシンイミド、ポリアスパラギン酸およびその塩類の製造方法とこれら化合物の用途 |
| JP3385587B2 (ja) | 1993-02-22 | 2003-03-10 | バイエル アクチェンゲゼルシャフト | ポリサクシンイミド及びポリアスパラギン酸の製造方法 |
| JP3419067B2 (ja) | 1993-03-02 | 2003-06-23 | バイエル アクチェンゲゼルシャフト | ポリアスパラギン酸の製造法 |
| JP3384420B2 (ja) | 1994-08-26 | 2003-03-10 | 味の素株式会社 | ポリアスパラギン酸塩の製造方法 |
| JP3683064B2 (ja) | 1996-01-29 | 2005-08-17 | バイエル アクチェンゲゼルシャフト | スクシニル繰り返し単位を有するポリマーの製造方法 |
| JPH09309952A (ja) * | 1996-05-21 | 1997-12-02 | Mitsui Petrochem Ind Ltd | ポリアスパラギン酸抗菌性金属塩の製造方法 |
| JP2000517367A (ja) * | 1996-09-06 | 2000-12-26 | バイエル・アクチエンゲゼルシヤフト | 反復サクシニル単位を有する重合体の製造法 |
| JP2000212277A (ja) * | 1998-12-22 | 2000-08-02 | Natl Starch & Chem Investment Holding Corp | 側鎖多糖類部分を有するアミノ酸コポリマ―及びその用途 |
| JP2000290368A (ja) | 1999-04-05 | 2000-10-17 | Dainippon Ink & Chem Inc | ポリアスパラギン酸の製造方法 |
| JP2003026802A (ja) * | 2001-07-13 | 2003-01-29 | Mitsui Chemicals Inc | 架橋重合体の製造方法 |
Non-Patent Citations (2)
| Title |
|---|
| J. AM. CHEM. SOC., vol. 80, 1958, pages 3361 |
| See also references of EP2537876A4 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627766A (zh) * | 2012-04-05 | 2012-08-08 | 石家庄开发区德赛化工有限公司 | 农业用补锌剂聚天冬氨酸锌的制备方法 |
| CN102627766B (zh) * | 2012-04-05 | 2013-07-24 | 石家庄开发区德赛化工有限公司 | 农业用补锌剂聚天冬氨酸锌的制备方法 |
| WO2019189837A1 (ja) | 2018-03-30 | 2019-10-03 | 三井化学株式会社 | 再付着防止剤及び洗剤組成物 |
| WO2022059486A1 (ja) | 2020-09-15 | 2022-03-24 | 三井化学株式会社 | 粉体化粧料及び化粧料組成物 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2537876A4 (en) | 2013-10-09 |
| JPWO2011102293A1 (ja) | 2013-06-17 |
| US9096720B2 (en) | 2015-08-04 |
| KR20120120498A (ko) | 2012-11-01 |
| EP2537876B1 (en) | 2017-01-18 |
| US20120309909A1 (en) | 2012-12-06 |
| JP5650194B2 (ja) | 2015-01-07 |
| KR101411041B1 (ko) | 2014-06-27 |
| CN102753606B (zh) | 2015-01-07 |
| CN102753606A (zh) | 2012-10-24 |
| EP2537876A1 (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5650194B2 (ja) | ポリアスパラギン酸前駆体ポリマーおよびポリアスパラギン酸塩の製造方法 | |
| EP0660853B1 (en) | Production of polysuccinimide and polyaspartic acid from maleic anhydride and ammonia | |
| JP2013514443A (ja) | ポリグルタミン酸の制御された合成 | |
| JP6145571B2 (ja) | 新規酸二無水物、及びこの製造方法 | |
| US8729218B2 (en) | Manufacturing method of polyaspartic acid using maleic anhydride | |
| CN101784525A (zh) | 用于合成二氨基吡啶和相关化合物的方法 | |
| CN101765588A (zh) | 用于合成二氨基吡啶和相关化合物的方法 | |
| JPH02268155A (ja) | ペンダント水酸基含有n―アルキルマレイミド類の製造方法 | |
| WO2017135184A1 (ja) | 2-シアノアクリレートの製造方法 | |
| JP6336192B1 (ja) | 脂肪族マレイミドの製造方法 | |
| JP5874378B2 (ja) | スルホン化アリールアミンポリマー及びその製造方法 | |
| JPH04234831A (ja) | ヒドロキシフェニルプロピオン酸エステルの製造方法 | |
| JPS61221158A (ja) | 4,4′−ビス(アミノフエノキシ)ベンゾフエノンの製造方法 | |
| WO2025121285A1 (ja) | ホスフィンパラジウム錯体、重合触媒及び芳香族ポリマーの製造方法 | |
| WO2021131549A1 (ja) | ジアミノビフェニル化合物の製造方法 | |
| JP2021104991A (ja) | ジアミノビフェニル化合物の製造方法 | |
| JPH08291219A (ja) | ポリスクシンイミドの製造方法 | |
| NL2016513B1 (en) | All-aromatic high-performance block-copolymers. | |
| JPH08291218A (ja) | ポリアスパラギン酸及びその塩の製造方法 | |
| JPH08239468A (ja) | 無水ポリアスパラギン酸の製造方法 | |
| KR101002581B1 (ko) | 무수말레인산 및 무수알킬말레인산을 이용한 아스파르틱산-알킬아스파르틱산 공중합체의 제조방법 | |
| JP2013091628A (ja) | m−フェニレンジエステル型酸二無水物、その製造法及びポリイミド | |
| JP2013028689A (ja) | 新規スルホン化トリアリールアミンポリマーおよびその製造方法 | |
| JPH09316198A (ja) | 変性ポリアスパラギン酸塩の製造方法 | |
| JPH02268156A (ja) | ペンダント水酸基含有マレイミド類の製造法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201180009252.5 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11744580 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2012500572 Country of ref document: JP |
|
| REEP | Request for entry into the european phase |
Ref document number: 2011744580 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2011744580 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 20127021409 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 13579335 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |