中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (5): 5-9.

• 研究论文 • 上一篇    下一篇

钛系Ziegler－Natta催化剂下的丙烯/α－烯烃的共聚合

陈辉, 王建国, 张学全, 庞德仁, 黄葆同   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1994-03-24 修回日期:1994-06-17 出版日期:1994-10-10 发布日期:1994-10-10
  • 基金资助:
    国家自然科学基金资助项目

Copolymerization of Propylene and α-Olefin by Titanium-Based Ziegler-Natta Catalysts

Chen Hui, Wang Jianguo, Zhang Xuequan, Pang Deren, Huang Baotong   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1994-03-24 Revised:1994-06-17 Published:1994-10-10 Online:1994-10-10

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摘要： 研究了TiCl4/MgCl2-三乙基铝(TEA)高效载体催化体系下的丙烯/癸烯-1共聚及δ-TiCl3--氯二乙基铝(DEAC)催化体系下的丙烯/辛烯-1共聚合的基本反应规律,考察了铝钛比、温度、共聚单体浓度等对共聚合的影响;对比了两种催化体系的不同,利用非均相Ziegler-Natta催化体系下共聚合的非稳态扩散动力学的观点,解释了观察到的共聚合催化效率增加,共聚物粒子增大等实验现象。

关键词: Ziegler－Natta催化剂, 丙烯, 辛烯－1, 癸烯－1, 共聚合

Abstract: The synthesis of propylene/decene-1 copolymer by TiCl4/MgCl2 catalyst and propylene/octene-1 copolymer by δ-TiCl3 catalyst has been investigated.The effects of [Al]/[Ti] ratio,temperature,and concentration of monomers on the copolymerization have been studied.The higher catalysis efficiency,the larger particle size and more porous surface of polymer were observed in copolymerization in comparison with that in homopolymerization of propylene.The results are discussed in terms of the unsteady diffusion kinetics of the heterogeneous Ziegler-Natta polymerization.

Key words: propylene, octene, decene, copolymerization, Ziegler-Natta catalyst

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