高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (1): 83.

• 研究论文 • 上一篇    下一篇

BDC作为Iniferter引发苯乙烯聚合的研究

李增吉1, 沈家骢1, 董凤霞2, 郑萤光2   

  1. 1. 吉林大学化学系;
    2. 吉林大学测试中心
  • 收稿日期:1987-04-02 出版日期:1989-01-24 发布日期:1989-01-24
  • 基金资助:

    国家自然科学基金

A Study on Living Radical Polymerization by Using BDC as Photoiniferter

Li Zengji1, Shen Jiacong1, Dong Fengxia2, Zheng Yingguang2   

  1. 1. Department of Chemistry, Jilin University, Changchun;
    2. Center of Analysis, Jilin University, Changchun
  • Received:1987-04-02 Online:1989-01-24 Published:1989-01-24

摘要: 本文研究了由BDC(N,N-二乙基二硫代氨基甲酸苄酯)作为Iniferter(引发-转移-终止剂)引发苯乙烯的光聚合反应。发现转化率和分子量均随时间逐步增大,反应生成带有起始功能端基的聚合物。从顺磁谱可见BDC在光照射下分解生成的小分子自由基[·SSCN-(C2H5)2]及较活泼的苄基自由基引发苯乙烯聚合产生的大分子增长自由基。探讨了这种活性自由基聚合反应机理。

关键词: 引发-转移-终止剂, 活性自由基聚合

Abstract: The polymerization of St by using BDG as photoiniferter was studied. In the photopolymerization, both the yields and average-molecular weights of polymers were found to increase with the reaction time. The polymers with functional end groups were obtained. In the 'polymerization process, the stable small radical which was produced by photolysis of BDCor functional end groups and the propagating radical of St were determined by ESR. This living radical photopolymerization mechanism was explained.

Key words: BDC, Photopolymerization of styrene

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