SU73291A1 - The method of producing copolymers - Google Patents
The method of producing copolymersInfo
- Publication number
- SU73291A1 SU73291A1 SU1375A SU370704A SU73291A1 SU 73291 A1 SU73291 A1 SU 73291A1 SU 1375 A SU1375 A SU 1375A SU 370704 A SU370704 A SU 370704A SU 73291 A1 SU73291 A1 SU 73291A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- polymerization
- producing copolymers
- copolymers
- alcohols
- esters
- Prior art date
Links
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Description
Способы сополимеризации виниловых эфиров с малеиновым ангидpH/ioM в присутствии спиртов и эмульгаторов известпы. Известно также использование в качестве эмульгатора поливинилового спирта. Описываемый способ получени полимеров и сополимеров основан на полимеризации эфиров или их смесей с органическими кислотам.и, или их ангидридов в присутствии спиртов, причем полимеризацию ведут в эмульсии , а в качестве катализаторов примен ютс искусственные смолы, способные к ионному обмену.Methods of copolymerization of vinyl ethers with maleic anhydropH / ioM in the presence of alcohols and lime lime emulsifiers. It is also known to use polyvinyl alcohol as an emulsifier. The described method of producing polymers and copolymers is based on the polymerization of esters or their mixtures with organic acids and their anhydrides in the presence of alcohols, the polymerization being carried out in an emulsion, and ion-exchangeable resins are used as catalysts.
Предлагаемый способ примен ют дл полимеризации различных эфиров (виниловых, акриловых), содержащих способные к полимеризации группы, а также при реакци х переэтерификации эфиров различных кислот (адипииовой, фумаровой, фталеиновой, акриловой и др.).The proposed method is used for the polymerization of various esters (vinyl, acrylic) containing polymerizable groups, as well as during the transesterification of esters of various acids (adipic, fumaric, phthaleic, acrylic, etc.).
Этот способ прост и дает возможность при помощи одного процесса получать высокополимерные продукты, из которых можно получать различпые пластмассы, лаки, синтетические стекла и т. д.This method is simple and allows using a single process to obtain high-polymer products, from which it is possible to obtain various plastics, varnishes, synthetic glasses, etc.
Пример. Смещивают 100 вес. ч. винилацетата, 30 вес. ч. малеииового ангидрида, 12 вес. ч. 20%-ного водного раствора поливинилалкогол и 1,5 вес. ч. продукта конденсации фенолнатрийсзльфига с формальдегидом , обработанного концентрированной серной кислотой.Example. Shift 100 weight. including vinyl acetate, 30 wt. including maleic anhydride, 12 wt. including 20% aqueous solution of polyvinyl alcohol and 1.5 wt. including condensation product phenol sodium with formaldehyde, treated with concentrated sulfuric acid.
Смесь нагревают при непрерывном цомещивании в течение 1- 2 час. до 60-70°. По окончании реакции катализатор отдел ют декантацией , а оставщуюс сиропообразную реакционную массу разбавл ют большим количеством воды. Осаждаетс белый творожистый продукт полимеризации, который промывают водой до нейтральной реакции. Г1осле сушки на воздухе при комнатной температуре получаетс порошкообразный продукт, не растворимый в воде и бензоле.The mixture is heated with continuous placement for 1-2 hours. up to 60-70 °. At the end of the reaction, the catalyst is separated by decantation, and the remaining syrup-like reaction mass is diluted with a large amount of water. A white, chewy polymerization product precipitates, which is washed with water until neutral. After drying in air at room temperature, a powdery product is obtained which is insoluble in water and benzene.
№ 73291-2-.. № 73291-2- ..
Предмет изобретеии Subject of invention
Способ получени сополимеров на основе виниловых эфиров и мэлёинового ангидрида в присутствии спиртов, отличающийс теМ, что полимеризацию ведут в водной эмульсии в присутствии искусственных смол, способных к ионному обмену, в качестве катализаторов.A process for the preparation of copolymers based on vinyl ethers and melic anhydride in the presence of alcohols, characterized in that the polymerization is carried out in an aqueous emulsion in the presence of ion-exchanged synthetic resins as catalysts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1375A SU73291A1 (en) | 1947-10-01 | 1947-10-01 | The method of producing copolymers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1375A SU73291A1 (en) | 1947-10-01 | 1947-10-01 | The method of producing copolymers |
Publications (1)
Publication Number | Publication Date |
---|---|
SU73291A1 true SU73291A1 (en) | 1947-11-30 |
Family
ID=52706351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1375A SU73291A1 (en) | 1947-10-01 | 1947-10-01 | The method of producing copolymers |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU73291A1 (en) |
-
1947
- 1947-10-01 SU SU1375A patent/SU73291A1/en active
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