高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (11): 1884.

• 论文 • 上一篇    下一篇

苯乙烯-马来酸酐本体自由基共聚合反应机理

董宇平1, 封麟先1, 杨士林1, 沈家骢2   

  1. 1. 浙江大学高分子科学与工程系, 杭州 310027;
    2. 吉林大学化学系, 长春 130023
  • 收稿日期:1996-07-23 出版日期:1997-11-24 发布日期:1997-11-24
  • 通讯作者: 董宇平, 男, 33岁, 博士, 副教授, 现在北京理工大学工作
  • 作者简介:董宇平, 男, 33岁, 博士, 副教授, 现在北京理工大学工作
  • 基金资助:

    北京理工大学引进人才启动基金

Mechanism of Bulk Copolymerization of Styrene and Maleic Anhydride

DONG Yu-Ping1, FENG Lin-Xian1, YANG Shi-Lin1, SHEN Jia-Cong2   

  1. 1. Department of Polymer Science and Engineering, Zhijiang University, Hangzhou 310027;
    2. Department of Chemistry,, Jilin University, Changchun 130023
  • Received:1996-07-23 Online:1997-11-24 Published:1997-11-24

摘要: 应用络合-解离模型和络合参与模型,证明在70~140℃区间内苯乙烯-马来酸酐本体自由基共聚合反应属于络合-解离机理,理论结果与实验数据相吻合;而络合-参与模型与实验数据偏差较大.结果表明:随着温度的升高,络合物分子的聚合反应活性提高,链端自由基对组成络合物分子的单体选择性增强,生成交替共聚物的程度增大.

关键词: 交替共聚合反应, 络合-解离模型, 络合-参与模型

Abstract: Because the interaction between the carbonyl groups of maleic anhydride (Man)and benzene ring of styrene(St) was the major part in the charge transfer complex (CTC)formed by St and Man, The unsaturated carbon--carbon double bond of Man was not in aadvantageous position in copolymerization with the ethyl group of St.The calculated data fromthe Complex-Dissociation Model were coincided well with experimental ones.It is reasonableconsidered that the bulk copolymerization of St and Man proceeded according to theComplex--Dissociation Model.The fitting data also showed that the probability of alternativecopolymerization increased with the increasing of temperature among 70~140℃.

Key words: Alternative copolymerization, Complex-Dissociation Model, Complex-Participation Model

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