CH452898A - Process for polymerizing cyclic acetals - Google Patents
Process for polymerizing cyclic acetalsInfo
- Publication number
- CH452898A CH452898A CH624562A CH624562A CH452898A CH 452898 A CH452898 A CH 452898A CH 624562 A CH624562 A CH 624562A CH 624562 A CH624562 A CH 624562A CH 452898 A CH452898 A CH 452898A
- Authority
- CH
- Switzerland
- Prior art keywords
- weight
- parts
- cyclic acetals
- polymerizing cyclic
- polymerization
- Prior art date
Links
- -1 cyclic acetals Chemical class 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 230000000379 polymerizing effect Effects 0.000 title claims description 4
- 239000003054 catalyst Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 5
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 4
- ABDBNWQRPYOPDF-UHFFFAOYSA-N carbonofluoridic acid Chemical compound OC(F)=O ABDBNWQRPYOPDF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 238000012690 ionic polymerization Methods 0.000 claims description 2
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 description 7
- 238000006116 polymerization reaction Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- JTMJJNQWAUGGBW-UHFFFAOYSA-M 4-nitrobenzenediazonium perchlorate Chemical compound [O-][Cl](=O)(=O)=O.[O-][N+](=O)C1=CC=C(C=C1)[N+]#N JTMJJNQWAUGGBW-UHFFFAOYSA-M 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- AUAGGMPIKOZAJZ-UHFFFAOYSA-N 1,3,6-trioxocane Chemical compound C1COCOCCO1 AUAGGMPIKOZAJZ-UHFFFAOYSA-N 0.000 description 1
- LRMSQVBRUNSOJL-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)F LRMSQVBRUNSOJL-UHFFFAOYSA-N 0.000 description 1
- CCUWGJDGLACFQT-UHFFFAOYSA-N 2,2,3,3,4,4-hexafluoropentanedioic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(O)=O CCUWGJDGLACFQT-UHFFFAOYSA-N 0.000 description 1
- RAYMFEAEWBMNIP-UHFFFAOYSA-M 2-methyl-4-nitrobenzenediazonium 2,2,2-trifluoroacetate Chemical compound FC(C(=O)[O-])(F)F.[N+](=O)([O-])C1=CC(=C(C=C1)[N+]#N)C RAYMFEAEWBMNIP-UHFFFAOYSA-M 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000010538 cationic polymerization reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- YPJUNDFVDDCYIH-UHFFFAOYSA-N perfluorobutyric acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)F YPJUNDFVDDCYIH-UHFFFAOYSA-N 0.000 description 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/10—Polymerisation of cyclic oligomers of formaldehyde
-
- 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
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
-
- 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
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/06—Catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Description
Verfahren zum Polymerisieren von cyclischen Acetalen Das Hauptpatent betrifft ein Verfahren zum Poly- memisieren von cyclischen Acetalen nach einem Ring öffnungsmechanismus in Gegenwart eines eine ionische Polymerisation auslösendem Katalysatonsystems, dadurch gekennzeichnet, dass das Katalysatorsystem durch Zersetzung eines Aryldiazoniumfluorborates in Gegenwart des, zu polymerisierenden Monameren ge bildet wird.
Bei der weiteren Ausgestaltung der in dein Haupt patent beschriebenen Erfindung wurde nun gefunden, dass sich Aryldiazoniumsalze der Perchlorsäure sowie von Perfluorcarbonsäuren, die vorzugsweise 2-20 C- Atome enthalten, gut zur Auslösung einer kotionischen Polymerisation eignen.
Als zur Salzbildung geeignete Perfluorcarbonsäure kommen z. B. in Betmacht: Trifluoressigsäure, Perfluor- propionsäure, Perfluorbuttersäure, Perfluoroktansäure sowie Perfluorglutarsäure.
Einige dieser Aryldiazoniumsalze besitzen in Monomeren mit geringer Polarität sogar noch bessere Löslichkeit als die analogen Fluorborate. Der Aryltest kann die gleichen Substituenten tragen, wie bei den analogen Fluorboraben des Hauptpatentes. Es können natürlich auch Mischungen von verschiedenen erfin- dungsgemäss zu verwendenden Aryldiazaniumsalzen, gegebenenfalls zusammen mit Aryldiazoniumfluorbora- ten, zum Einsatz kommen.
<I>Beispiel I</I> 100 Gewichtsteile Trioxan werden geschmolzen und bei 68 C 0,015 Gewichtsteile 4-Nitrophenyldiazoni- umperchlorat zugegeben, die sofort in Lösung gehen. Nach ca. 1 Minute setzt die Polymerisation ein, und nach kurzer Zeit ist der ganze Ansatz zu einem festen Block aus Polymerisat erstarrt.
Zur Nachreaktion wird der Ansatz 1 Stunde bei 68-70 C belassen. Das Produkt wird dann gemahlen und mit einer 2 %igen Lösung von Äthanolamin in Methanol 1 Stunde unter Rückfluss gekocht. Nach dem Absaugen wird mit Methanol neutral gewaschen und im Vakuum bei 50 C getrocknet. Ausbeute 93 Gewichts teile Polymerisat. Das erhaltene Produkt hatte bei 202 C einen Gewichtsverlust von 0,15 Oh, pro Minute. <I>Beispiel 2</I> 100 Gewichtsteile Trioxan werden geschmolzen und bei 90 C 0,02 Gewichtsteile 4-Nitro-2-methylphe- nyldiazoniumtrifluaracetat zugegeben.
Der Katalysator geht sofort in Lösung und nach ca. 3 Minuten setzt die Polymerisationsreaktian ein. Die weitere Behandlung erfolgte analog Beispiel 1. Es wurden 89 Gewichtsteile Polymerisat erhalten.
Beispiel <I>3</I> 100 Gewichtsteile Trioxan werden geschmolzen und bei 60 C 0,005 Gewichtsteile der Verbindung
EMI0001.0035
Der Katalysator geht sofort als Katalysator in Lösung. Der Ansatz wird dann. je zur Hälfte in zwei gleiche Gefässe aus Jenaer Glas gefüllt. Gefäss I wird im Thermostat bei 68 C unter Lichtausschluss aufbe wahrt.
Gefäss II wird der Bestrahlung einer normalen 250 Watt Lampe in 30 cm Abstand ausgesetzt. Nach Ablauf von ca. 100 Sekunden setzt in dem bestrahlten Gefäss unter Trübung die Polymerisation ein. Dagegen zeigt Gefäss I nach 100 Minuten noch keine Anzeichen einer Polymerisatian. Nach dieser Zeit wird Gefäss I unter den gleichen Bedingungen wie Gefäss II be strahlt.
Nach ca. 100 Sekunden setzt auch in diesem nach kurzer Zeit ist Fall die Polymerisation ein un der ganze Ansatz zu einem festen Block erstarrt. <I>Beispiel 4</I> 100 Gewichtsteile flüssiges Trioxan wenden mit 2 Gewichtsteilen Äthylenoxyd vermischt und bei 62 C 0,02 Gewichtsteile 4-Nitrophenyldiazoniumperchlorat zugegeben, die sofort in Lösung gehen. Nach ca. 50 Sekunden setzt die Polymerisation ein und der ganze Ansatz ist innerhalb kurzer Zeit zu einem festen Poly merisatblock erstarrt. Zur Nachreaktion wird. der An satz anschliessend noch 1 Stunde auf 68-70 C gehal ten. Die Aufarbeitung erfolgt wie in Beispiel 1 be schrieben. Es werden 90 Gewichtsteile Polymerisat er halten.
Dieses Polymerisat zeigt bei einer Temperatur von 202 C einen Gewichtsverlust von 0,09 1/o pro Minute.
<I>Beispiel 5</I> 5 Gewichtsteile absolutes Diäthylenglycolformal werden bei 20 C mit 0,08 Gewichtsteilen
EMI0002.0001
der beschrie ben.
vereinigt. Die gelbe Lösung wird bis zur Entfärbung mit einer UV-Quecksilberlampe bestrahlt (ca. 100-120 sek.). Die Polymerisation setzt bereits während der Bestrahlung ein. Im Verlauf der Polymerisation er- starrt das Polymere zu einem festen, farblosen Block, der nach 24 Stunden weitgehend durchkristallisiert ist. Aufarbeitung erfolgte wie in Beispiel 1 Ausbeute 97 Gewichtsprozent, bezogen auf einge setztes Diäthylenglykalfarmal.
Gegen,
Process for polymerizing cyclic acetals The main patent relates to a process for polymerizing cyclic acetals according to a ring opening mechanism in the presence of a catalyst system which triggers ionic polymerization, characterized in that the catalyst system is formed by decomposition of an aryldiazonium fluoroborate in the presence of the monomer to be polymerized becomes.
In the further development of the invention described in your main patent, it has now been found that aryldiazonium salts of perchloric acid and of perfluorocarboxylic acids, which preferably contain 2-20 carbon atoms, are well suited for triggering a cationic polymerization.
Suitable perfluorocarboxylic acids for salt formation are, for. B. in Betmacht: trifluoroacetic acid, perfluoropropionic acid, perfluorobutyric acid, perfluorooctanoic acid and perfluoroglutaric acid.
Some of these aryldiazonium salts have even better solubility in monomers with low polarity than the analogous fluoroborates. The aryl test can have the same substituents as the analogous fluoroboraben in the main patent. It is of course also possible to use mixtures of different aryldiazanium salts to be used according to the invention, if appropriate together with aryldiazonium fluoroborora.
<I> Example I </I> 100 parts by weight of trioxane are melted and 0.015 parts by weight of 4-nitrophenyldiazonium perchlorate are added at 68 ° C., which dissolve immediately. After about 1 minute, the polymerization starts and after a short time the whole batch has solidified into a solid block of polymer.
The batch is left at 68-70 ° C. for 1 hour for subsequent reaction. The product is then ground and refluxed with a 2% solution of ethanolamine in methanol for 1 hour. After suctioning off, it is washed neutral with methanol and dried in vacuo at 50.degree. Yield 93 parts by weight of polymer. The product obtained had a weight loss of 0.15 ohms per minute at 202 ° C. <I> Example 2 </I> 100 parts by weight of trioxane are melted and 0.02 parts by weight of 4-nitro-2-methylphenyldiazonium trifluoroacetate are added at 90.degree.
The catalyst immediately dissolves and after about 3 minutes the polymerization reaction begins. The further treatment was carried out as in Example 1. 89 parts by weight of polymer were obtained.
Example <I> 3 </I> 100 parts by weight of trioxane are melted and at 60 ° C. 0.005 parts by weight of the compound
EMI0001.0035
The catalyst immediately goes into solution as a catalyst. The approach then becomes. Half filled into two equal vessels made of Jena glass. Vessel I is kept in the thermostat at 68 C with exclusion of light.
Vessel II is exposed to the irradiation of a normal 250 watt lamp at a distance of 30 cm. After approx. 100 seconds, the polymerization begins in the irradiated vessel with turbidity. In contrast, vessel I still shows no signs of polymerisation after 100 minutes. After this time, vessel I is irradiated under the same conditions as vessel II.
After approx. 100 seconds, even in this case, after a short time, the polymerization begins and the whole batch has solidified into a solid block. <I> Example 4 </I> 100 parts by weight of liquid trioxane are mixed with 2 parts by weight of ethylene oxide and 0.02 parts by weight of 4-nitrophenyldiazonium perchlorate are added at 62 ° C., which dissolve immediately. After about 50 seconds, the polymerization begins and the entire batch has solidified within a short time to form a solid block of polymer. For post-reaction. the batch is then kept at 68-70 ° C. for 1 hour. Working up is carried out as described in Example 1. There will be 90 parts by weight of polymer he keep.
This polymer shows a weight loss of 0.09 1 / o per minute at a temperature of 202.degree.
<I> Example 5 </I> 5 parts by weight of absolute diethylene glycol formal are at 20 C with 0.08 parts by weight
EMI0002.0001
the described.
united. The yellow solution is irradiated with a UV mercury lamp until it becomes discolored (approx. 100-120 seconds). The polymerization starts already during the irradiation. In the course of the polymerization, the polymer solidifies to form a solid, colorless block that has largely crystallized through after 24 hours. Work-up was carried out as in Example 1, yield 97 percent by weight, based on diethylene glycol employed.
Versus,
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH861860A CH431077A (en) | 1959-07-30 | 1960-07-28 | Process for polymerizing cyclic acetals |
| DEF34021A DE1300685B (en) | 1959-07-30 | 1961-05-26 | Process for the production of polyacetals or polyethers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH452898A true CH452898A (en) | 1968-03-15 |
Family
ID=25703544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH624562A CH452898A (en) | 1960-07-28 | 1962-05-23 | Process for polymerizing cyclic acetals |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH452898A (en) |
-
1962
- 1962-05-23 CH CH624562A patent/CH452898A/en unknown
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