高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (10): 1653.

• 研究简报 • 上一篇    

苯乙烯和丙烯酸丁酯自由基共聚合竞聚率测定与研究

吴平平1, 吴玉芳1, 杨全兴1, 韩哲文1, 朱清仁2   

  1. 1. 华东理工大学高分子材料研究所, 上海, 200237;
    2. 中国科技大学结构分析开放实验室
  • 收稿日期:1994-10-12 修回日期:1995-04-18 出版日期:1995-10-24 发布日期:1995-10-24
  • 通讯作者: 吴平平,女,55岁,教授.
  • 作者简介:吴平平,女,55岁,教授.

Studies on the Reactivity Ratios of Styrene and Butyl Acrylate

WU Ping-Ping1, WU Yu-Fang1, YANG Quan-Xing1, HAN Zhe-Wen1, ZHU Qing-Ren2   

  1. 1. Department of Polymer Material, East China University of Science and Technology, Shanghai, 200237;
    2. Structitre Research Laboratory, University of Science and Technology of China, Academia Sinica
  • Received:1994-10-12 Revised:1995-04-18 Online:1995-10-24 Published:1995-10-24

PDF (PC)

被引次数

6

关键词: 苯乙烯, 丙烯酸丁酯, 竞聚率, 序列分布

Abstract: In this study, copolymerizations of styrene(St,M1) and butyl acrylate(BA,M2)were carried Out at 60,80, 100, 120 and 140℃ at two sensitive feed compositions. Compositions of copolymers were analyzed by 1HNMR, Reactivity ratios were calculated by Errorin-Variable method to be r1=0.688.r2=0.157; r1=0.378,r2=0.174;r1=0.772,r2=0. 201; r1=0.810,r2=0.216 and r1=0.851,r2=0.241 at various polymerization temperatures above. The differences of activation energies between homo-polymerization and copoly merization were obtained to be E11-E12=2.97KJ/mol,E22-E21=6.13KJ/mol, The chain length distribution at 60℃ and Q, e values of BA at 60℃ were also calculated.

Key words: Styrene, Butyl acrylate, Reactivity ratio, Series distribution

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