高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (7): 1338.

• 研究简报 • 上一篇    

橡胶接枝苯乙烯本体共聚合全程动力学研究(Ⅰ)──接枝行为

黄源, 曹堃, 李宝芳, 李伯耿   

  1. 浙江大学化工系, 聚合反应工程国家重点实验室, 杭州 310027
  • 收稿日期:2002-05-13 出版日期:2003-07-24 发布日期:2003-07-24
  • 通讯作者: 李伯耿(1958年出生),男,教授,博士生导师,主要从事聚合反应工程研究.E-mail:bgli@cmsce.zju.edu.cn E-mail:bgli@cmsce.zju.edu.cn
  • 基金资助:

    国家杰出青年科学基金(批准号:20125617)资助

Studies on Grafting Kinetics of Bulk Copolymerization of Styrene onto Rubber(Ⅰ)──Grafting Behavior

HUANG Yuan, CAO Kun, LI Bao-Fang, LI Bo-Geng   

  1. State Key Laboratory of Polymer Reaction Engineering, Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2002-05-13 Online:2003-07-24 Published:2003-07-24

关键词: 接枝聚合, 本体聚合, 动力学, 橡胶, 苯乙烯

Abstract: The difference between apparent grafting ratio and true grafting ratio in bulk graft copolymerization of styrene onto rubber and the change of rubber particle size during the overall polymerization processes were studied. The results show that, the apparent grafting ratio increased mutationally at the phase inversion and trended to level off after the phase inversion, but the true grating ratio increased gradually with the increase of conversion. At the same time, the particle size of rubber phase in the original polymerizing mixtures almost kept constant after the phase inversion. On the contrary, the size increased with the increase of conversion when the samples were dealt with multi-solution-centrifugation.

Key words: Graft polymerization, Bulk polymerization, Kinetics, Rubber, Styrene

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