高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (6): 879.

• 研究论文 • 上一篇    下一篇

甲基丙烯酸甲酯增长自由基ESR谱研究

毛友钢, 王国斌, 郑莹光, 沈家骢   

  1. 吉林大学理化所化学系分析测试中心, 长春 130023
  • 收稿日期:1992-07-02 修回日期:1992-12-02 出版日期:1993-06-24 发布日期:1993-06-24
  • 通讯作者: 毛友钢
  • 基金资助:

    国家自然科学基金

The ESR Study of PMMA Propagating Radical in Bulk Polymerization Process

MAO You-Gang, WANG Guo-Bin, ZHENG Ying-Guang, SHEN Jia-Cong   

  1. Institute of Theoretical Chemistry, Mm University, Changchun, 130023
  • Received:1992-07-02 Revised:1992-12-02 Online:1993-06-24 Published:1993-06-24

摘要: 利用高斯分布和构象叠加模型模拟了本体聚合反应全过程增长自由基ESR谱,获得了其构象构成及其随反应的变化,并对产生变化的原因即介质粘度和增长反应对谱的影响进行了讨论。

关键词: 甲基丙烯酸甲酯, 本体聚合, 自由基ESR谱

Abstract: The ESRspectra of PMMAin bulk polymerization process have been obtained and simulated by using the models of Gaussian distribution about the two stable conformations Aand B.The results show that both the ratio of Aand Bconformations, and the average tilt angle of Bconformation decreased with half-height width of the Gaussian distribution as the indicative of the microviscosity of reaction system.The change was discussed with respect to the thermodynamics and dynamics.

Key words: MMA, Bulk polymerization, Radical ESR

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