SU564309A1 - Method for modifying atactic polypropylene - Google Patents
Method for modifying atactic polypropyleneInfo
- Publication number
- SU564309A1 SU564309A1 SU7502169184A SU2169184A SU564309A1 SU 564309 A1 SU564309 A1 SU 564309A1 SU 7502169184 A SU7502169184 A SU 7502169184A SU 2169184 A SU2169184 A SU 2169184A SU 564309 A1 SU564309 A1 SU 564309A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- modifying
- atactic polypropylene
- polypropylene
- maleic anhydride
- peroxides
- Prior art date
Links
- 239000004743 Polypropylene Substances 0.000 title description 7
- 238000000034 method Methods 0.000 title description 7
- -1 polypropylene Polymers 0.000 title description 7
- 229920001155 polypropylene Polymers 0.000 title description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 5
- 150000002978 peroxides Chemical class 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- PCSMJKASWLYICJ-UHFFFAOYSA-N Succinic aldehyde Chemical group O=CCCC=O PCSMJKASWLYICJ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- RINCXYDBBGOEEQ-UHFFFAOYSA-N succinic anhydride Chemical group O=C1CCC(=O)O1 RINCXYDBBGOEEQ-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
. Изобретение относитс к способам модификации атактического полипропилена мапеиновым ангидридом.; Изйестен способ модификации полипропилена , который заключаетс в обработке перекис ми реакционной смеси малеинового ангидрида и полипропилена в органическом растворителе и в среде азота при температуре 12О с/в течение 4 ч. Количество прореагировавшего малеинового ангидрида 0,87% И. : . Изветен также способ модификации по- пимера малеиновым ангидридом, заключающийс в обработке реакционной смеси;перекис ми в органическом растворителе и в среде азота при температуре преимущественно 100-2ОО С в течение 5-6 ч. Содержание сукцинангидридных групп составл ет 6,8 вес. %. 2.. Недостатками способов вл ютс низка степень превращени реагирующих веществ, Необходимость применени нестойких, быстро разлагающихс и сравнительно доро-. гих инициаторов-перекисей. Цель изобретени - повышение степени превращени реагирующих веществ. Поставленна цель достигаетс тем, что модификацию атактического, полипропилена мол. вес. 40О-ЗООО малеиновым ангидридом ведут при 2ОО-25О°С, преимущественно 220250°С , в течение 6-12 ч. Предлагаемый способ позвол ет повысить степень превращени реагирующих ве- ществ. Содержание сукцинангидридных групп составл ет 12-17 вес. %. Кроме того, отпадает необходимость в применении перекисей, что упрощает и удещевл ет процесс модификации. Модифицированный таким способом полипропилен представл ет собой маслораство- римое вещество,, характеризуетс высоким содержанием, малеинового ангидрида и может использоватьс дл синтеза маслораст (воримых поверхностно-активных веществ, в частности присадок к моторным маслам. Пример. Толстостенную ампулу емкостью 25 мл, со держащуюмалеиновый ангидрид, атактический полипропилен и ксилол (ЗО вес.%), помещают в термостати. This invention relates to methods for modifying atactic polypropylene with maic anhydride .; Isyesten is a method of modifying polypropylene, which consists in processing peroxides of the reaction mixture of maleic anhydride and polypropylene in an organic solvent and in a nitrogen atmosphere at a temperature of 12 ° C / 4 hours. A method for modifying the polymer with maleic anhydride has also been introduced, which consists in treating the reaction mixture by peroxides in an organic solvent and in a nitrogen atmosphere at a temperature of preferably 100-2OO C for 5-6 hours. The content of succinic hydride groups is 6.8 wt. % 2 .. The disadvantages of the methods are the low degree of conversion of the reactants. The need to use unstable, rapidly decomposing and relatively expensive. gih initiators peroxides. The purpose of the invention is to increase the degree of conversion of the reacting substances. The goal is achieved by the modification of atactic polypropylene mol. weight. 40O-ZOOO maleic anhydride is carried out at 2OO-25 ° C, preferably 220-250 ° C, for 6-12 hours. The proposed method allows increasing the conversion degree of the reacting substances. The content of succinic anhydride groups is 12-17 wt. % In addition, there is no need to use peroxides, which simplifies and simplifies the modification process. Polypropylene modified in this way is an oil-soluble substance, which is high in maleic anhydride and can be used for the synthesis of oil growth (insoluble surfactants, in particular additives to motor oils. Example. A thick walled ampoule of 25 ml capacity containing maleic anhydride , atactic polypropylene and xylene (ZO wt.%), placed in a thermostat
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7502169184A SU564309A1 (en) | 1975-09-03 | 1975-09-03 | Method for modifying atactic polypropylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7502169184A SU564309A1 (en) | 1975-09-03 | 1975-09-03 | Method for modifying atactic polypropylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU564309A1 true SU564309A1 (en) | 1977-07-05 |
Family
ID=20630723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU7502169184A SU564309A1 (en) | 1975-09-03 | 1975-09-03 | Method for modifying atactic polypropylene |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU564309A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0490454A1 (en) * | 1990-12-12 | 1992-06-17 | Shell Internationale Researchmaatschappij B.V. | Alkenyl succinimides as luboil additives |
| RU2359978C1 (en) * | 2008-05-08 | 2009-06-27 | Общество с ограниченной ответственностью "ГРАФТ-ПОЛИМЕР" | Method for production of modified polyolefin |
-
1975
- 1975-09-03 SU SU7502169184A patent/SU564309A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0490454A1 (en) * | 1990-12-12 | 1992-06-17 | Shell Internationale Researchmaatschappij B.V. | Alkenyl succinimides as luboil additives |
| RU2359978C1 (en) * | 2008-05-08 | 2009-06-27 | Общество с ограниченной ответственностью "ГРАФТ-ПОЛИМЕР" | Method for production of modified polyolefin |
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