高等学校化学学报 ›› 1980, Vol. 1 ›› Issue (2): 86.

• 论文 • 上一篇    下一篇

烯类高聚物的构型序列分布

颜德岳1, 沈家(马总)2, 唐敖庆2   

  1. 1. 同济大学化学系;
    2. 吉林大学化学系
  • 收稿日期:1979-12-07 出版日期:1980-12-24 发布日期:1980-12-24

CONFIGURATIONAL SEQUENCE DISTRIBUTION OF VINYL POLYMER

Yan Deyue1, Shen Jiacong2, Tang Aoqing2   

  1. 1. Department of Chemistry, Tongji University;
    2. Department of Chemistry, Jilin University
  • Received:1979-12-07 Online:1980-12-24 Published:1980-12-24

摘要: 本文通过严格解微观反应动力学的方法,求得了烯类高聚物的构型序列尺寸分布函数,推导了各种序列的平均长度和重量分数。在此基础上,提出了Bernoulli过程的判别式,改进了Bovey图,并处理了一系列文献上和我们自己的数据。

Abstract: Generally,the theoretical treatment of configurational sequence distribution has been made by statistical method.In this paper,we solve the kinetic equations of living copolymerization in Bernoulli and Markov processes with the aid of linear differential technique and obtain the sequence distribution,the functions for number average length,weight average length and sequence fraction.On the basis of these,we propose the decision equations of Bernoulli process as follows.which are a modification of Bovey's map.If the reaction system falls under Bernoulli process,fraction of isotac-tic,syndiotactic and heterotactic configuration PI,PS,PHdoes not depend on reaction time,monomer conversion and initial concentration of monomer.Alternatively,in the case of the first Markov proces,fraction of configuration varies with time,monomer concentration and approaches a definite limit as propagation parameter x→∞ It is proved that the theoretical results are in agreement with experimental data.

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