高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (9): 941.

• 论文 • 上一篇    下一篇

用13CNMR研究丁苯阴离子共聚体系中各活性种的竞聚率

余可思1, 应圣康1, 俞槐根2   

  1. 1. 上海华东化工学院;
    2. 上海有机氟材料研究所
  • 收稿日期:1986-12-10 出版日期:1988-09-24 发布日期:1988-09-24
  • 通讯作者: 应圣康
  • 基金资助:

    中国自然科学基金

13C NMR Studies on the Monomer Reactivity Ratios of Various Species in Anionic Styrene-Butadiene Gopolymerization

Yu Kesi1, Ying Shengkang1, Yu Huaigen2   

  1. 1. East China Vniversity of Chemical Technology, Shanghai;
    2. Shanghai Institute of Fluoro-Organic Materials
  • Received:1986-12-10 Online:1988-09-24 Published:1988-09-24

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摘要： 本文利用13CNMR测试数据,计算了丁苯阴离子共聚体系中各活性种的竞聚率,得到了与动力学数据较一致的结果,对阴离子聚合反应Markov级数问题进行了讨论,并对用积分法计算高转化率下共聚物二元组组成进行了探索。

关键词: NMR, 丁二烯, 苯乙烯, 阴离子聚合, 共聚合

Abstract: By using the 13CNMR experimental data, the monomer reactivity ratios of various reactive species in the n-BuLi-THFinitiated butadienestyrene copolymeriza-tion system were evaluated. The results are in good agreement with the data obtained from the kinetic studies. Markobium mechanism of this anionic polymerization is discussed. Furthermore, the diad composition of copolymer at high conversion have been explored by integration.

Key words: NMR, Butadiene, Styrene, Anionic polymerization, Copolymerization

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