高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (12): 1439.

• 研究论文 • 上一篇    下一篇

本体聚合中增长自由基的微环境效应

沈家骢, 王国斌, 杨梅林, 郑莹光   

  1. 吉林大学化学系, 130023
  • 收稿日期:1990-09-26 出版日期:1990-12-24 发布日期:1990-12-24
  • 通讯作者: 沈家骢

Effect of the Micro-Surroundings of Propagating Radical in Bulk Polymerization

Shen Jia-cong, Wang Guo-bin, Yang Mei-lin, Zheng Ying-guang   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1990-09-26 Online:1990-12-24 Published:1990-12-24

摘要: 本文采用ESR技术和脉冲核磁梯度场自旋回波技术,论证了MMA、St本体聚合体系中增长自由基的反应活性和周围物理状态的微观非均一性,并讨论了这种非均一性对聚合反应的影响。

关键词: 自由基聚合, ESR, 反应速率常数, 微环境

Abstract: The present paper deals with the heterogeneity of the activity and physical micro-state of propagating radical in bulk polymerization of methyl methacrylate and styrene by ESRtechnique and pulsed gradient-field NMR spin echo technique. Some discussion and equations formulaing the effect of the heterogeneity are given.

Key words: Radical polymerization, ESR, Reaction rate coefficient, Micro-surroundings

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