高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (9): 851.

• 论文 • 上一篇    下一篇

甲基丙烯酸甲酯自由基本体聚合反应动力学(Ⅰ)--自由基的构象和浓度、链增长速率常数kp

田元, 郑莹光, 王国斌, 裘祖文, 沈家(马总)   

  1. 吉林大学化学系、测试中心
  • 收稿日期:1986-12-20 出版日期:1987-09-24 发布日期:1987-09-24

Kinetics of Methyl Methacrylate Bulk Radical Polymerization (Ⅰ)--Conformation and Concentration of Radical and Propagating Constant kp

Tian Yuan, Zeng Yingguang, Wang Guobing, Qiu Zuwen, Shen Jiacong   

  1. Department of Chemistry and Analytic and Measare Centre, Jilin University, Changchun
  • Received:1986-12-20 Online:1987-09-24 Published:1987-09-24

摘要: 采用TM110谐振腔和φ2mm样品管,记录了以N,N-二甲基苯胺与过氧化苯甲酰为引发体系的甲基丙烯酸甲酯本体聚合反应过程中增长自由基的ESR谱。由此得到反应过程中的增长自由基浓度及其构象。计算了链增长反应速率常数kp。结果表明:链增长反应为扩散控制过程。

Abstract: By using TM110cavity and 2mm sample tube, the ESRspectra of the propagating radical in the polymerization system of methyl methacrylatc were recorded. The concentration and conformation of radicals and the propagating constant kpwere measured.The results showed that the propagating reaction was a diffusion controlled process.

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