一种苯乙烯-马来酸酐-丙烯腈共聚物及其制备方法
By combining bulk polymerization and suspension polymerization, and using specific dispersion stabilizers to protect maleic anhydride, the problems of low conversion rate and large solvent consumption in the synthesis of styrene-maleic anhydride-acrylonitrile copolymers are solved, achieving efficient and environmentally friendly copolymer preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHINE POLYMER (ZHUHAI) CO LTD
- Filing Date
- 2021-12-27
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the synthesis of styrene-maleic anhydride-acrylonitrile copolymer has problems such as low reaction conversion rate, large amount of organic solvent used, complicated post-processing, and easy hydrolysis of maleic anhydride.
A combination of bulk polymerization and suspension polymerization is employed, using a specific aqueous solution of dispersant stabilizer to protect maleic anhydride from hydrolysis, controlling reaction temperature and time to form stable particles, avoiding mass and heat transfer difficulties caused by high viscosity, and reducing the use of organic solvents.
It achieves high-conversion copolymer synthesis, avoids the difficulties in mass and heat transfer and organic solvent treatment caused by high viscosity, protects the acid anhydride groups, and the process is environmentally friendly and economical.
Smart Images
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