高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (10): 1057.

• 论文 • 上一篇    下一篇

α-甲基苯乙烯与丁二烯阴离子共聚组成研究

郭少华, 周克俭, 高英, 应圣康   

  1. 华东化工学院材料研究所
  • 收稿日期:1987-02-17 出版日期:1988-10-24 发布日期:1988-10-24
  • 通讯作者: 应圣康
  • 基金资助:

    国家自然科学基金

A Study on Component of Anionic Copolymerization of a-Methylstyrene and Butadiene

Guo Shaohua, Zhou Kejian, Gao Ying, Ying Shengkang   

  1. Institute of material science, East China University of Ghemicad Technology, Shanghai
  • Received:1987-02-17 Online:1988-10-24 Published:1988-10-24

摘要: 本文研究了BuLi-THF引发α-甲基苯乙烯与丁二烯在环己烷中阴离子共聚的共聚组成与聚合活性种的关系,建立了多活性种存在下伴有解聚的共聚组成方程,求得了不同[THF]下的单体表观竞聚率γ1和γ2值,并估算了它们的误差。

关键词: 阴离子共聚, &alpha, -甲基苯乙烯, 丁二烯, 表观竞聚率

Abstract: The component of anionic copolymerization of α-methylstyrene (M1) and butadiene (M2), initiated -by BuEi-THF in cyclohexane, were investigated in detail. The copolymerization equation in the presence of various species, accompanied with depropagation during copolymerization,was derived. Both apparent monomer reactivity ratios γ1 and γ2,were dependent on [THF], and γ2 >>γ1,for example, γ1=0.049 and γ2=350 when [THF] =0.801M; γ1 =0.001 and γ2=220 when[THF]=0.06mol/L.

Key words: Anionic Copolymerization, α-Methylstyrene, Butadiene, Apparent -monomer reactivity ratio

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