高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (9): 2223.doi: 10.7503/cjcu20130422

• 高分子化学 • 上一篇    下一篇

三元非等活性自缩合乙烯基聚合体系的Z均回转半径

洪晓钟1, 顾芳2, 王海军2,3,4, 巴信武2   

  1. 1. 河北大学物理科学与技术学院, 保定 071002;
    2. 化学与环境科学学院, 保定 071002;
    3. 河北省化学生物学重点实验室, 保定 071002;
    4. 中国科学院国际材料物理中心, 沈阳 110016
  • 收稿日期:2013-05-06 出版日期:2013-09-10 发布日期:2013-08-30
  • 作者简介:王海军,男,博士,教授,主要从事高分子统计理论研究.E-mail:whj@mail.hbu.cn
  • 基金资助:

    国家自然科学基金(批准号:21274037,20873035)资助.

Z-Average Radius of Gyration of Polymers in the Ternary Self-Condensing Vinyl Polymerization System with Unequal Reactivity

HONG Xiao-Zhong1, GU Fang2, WANG Hai-Jun2,3,4, BA Xin-Wu2   

  1. 1. College of Physical Science and Technology, Baoding 071002, China;
    2. College of Chemistry and Environmental Science, Baoding 071002, China;
    3. Chemical Biology Key Laboratory of Hebei Province, Hebei University, Baoding 071002, China;
    4. International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2013-05-06 Online:2013-09-10 Published:2013-08-30

摘要:

利用Monte Carlo模拟方法研究了由单体、引发单体和引发核组成的三元自缩合乙烯基聚合反应体系. 重点考察了两类活性基团反应活性的差异、引发单体分数、引发核的配比及活性基团数等因素对体系中无核和有核两类超支化高分子Z均回转半径的影响. 结果表明, 这些因素对超支化高分子的结构和尺度影响显著, 因而通过调节有关参数可以实现对超支化高分子结构和尺度的调控.

关键词: 自缩合乙烯基聚合, 非等活性, Z均回转半径, Monte Carlo模拟

Abstract:

The Z-average radius of gyration of hyperbranched polymers formed in the ternary self-condensing vinyl polymerization system was studied by the method of Monte Carlo simulation, in which the unequal reactivity was taken into account. As a result, the effects of the reactivity difference in two types of active centers, the molar ratio of inimers to monomers, the molar ratio and functionality of core initiators were discussed. It is found that these factors can give rise to a significant influence on the Z-average radii of gyration of hyperbranched polymers with and without the core initiator. This provides some useful clues for regulating the dimension and structure of the hyperbranched polymers in the relevant experiments.

Key words: Self-condensing vinyl polymerization, Unequal reactivity, Z-Average radius of gyration, Monte Carlo simulation

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