高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (7): 1166.

• 论文 • 上一篇    下一篇

苯乙烯微乳液种子聚合

徐相凌1, 张志成1, 吴欣1, 葛学武1, 左榘2, 牛爱珍2   

  1. 1. 中国科学技术大学应用化学系, 合肥, 230026;
    2. 南开大学化学系, 吸附与分离功能高分子材料国家重点实验室, 天津, 300071
  • 收稿日期:1997-05-20 出版日期:1998-07-24 发布日期:1998-07-24
  • 通讯作者: 徐相凌,男,30岁,博士,讲师.
  • 作者简介:徐相凌,男,30岁,博士,讲师.

Microemulsion Seeded Polymerization of Styrene

XU Xiang-Ling1, ZHANG Zhi-Cheng1, WU Xin1, GE Xue-Wu1, ZUO Ju2, NIU Ai-Zhen2   

  1. 1. Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026;
    2. Department of Chemistry, State Key Laboratory of Functional Polymeric Materials for Adsorption and Separation, Nankai University, Tianjin, 300071
  • Received:1997-05-20 Online:1998-07-24 Published:1998-07-24

摘要: 通过观测苯乙烯微乳液种子聚合前后体系内聚合物粒子大小及其分布的变化发现,无论是γ射线还是KPS引发,聚合过程中都没有新的聚合物粒子生成。尽管聚合前体系中存在单体溶胀的胶束,但在聚合过程中这些胶束主要充当单体仓库,自己成核聚合的几率很低。由于微乳液种子聚合体系内,单体量相对较低,聚合物粒子数目很大,其聚合动力学明显不同于常规乳液种子聚合。

关键词: 微乳液聚合, 种子聚合, 苯乙烯

Abstract: Microemulsion seeded polymerizations of styrene were studied with γ ray or potassium persulfate. After examining the size of polymer particles and its distribution before and after polymerization, it was found that there were no new particles formed during polymerization, despite that there were micelles in aqueous phase. These micelles acted as monomer reservoir during polymerization, instead of nucleating loci. Due to the lower monomer content and the much more polymer particles in microemulsion seeded polymerization, its polymerization behavior was much different from the emulsion seeded polymerization.

Key words: Microemulsion polymerization, Seeded polymerization, Styrene

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