化学学报 ›› 1983, Vol. 41 ›› Issue (6): 498-504. 上一篇    下一篇

研究论文

Nd(OR)3-nCln-AlEt3催化体系对丁二烯的聚合 II.聚合物微观结构和催化剂诱导效应指数的关系

单成基;李玉良;逄束芬;欧阳均   

  1. 中国科学院长春应用化学研究所
  • 发布日期:1983-06-15

Nd(or)3-ncln-alet3 catalyst system used in the polymerization of butadiene ii the relationship between the microstructure of polymer and the inductive effect index of the catalyst

SHAN CHENGJI;LI YULIANG;PANG SHUFEN;OU YANGJUN   

  • Published:1983-06-15

关键词: 催化剂, 丁二烯, 钕化合物, 铝化合物, 三乙基, 定向聚合, 诱导效应

With a new series of binary catalyst Nd(OR)3-nCln-AlEt3 prepared in our laboratory, the effect to catalyst composition on the microstructure of polybutadiene was studied in detail. A linear relationship is found between the variation of the microstructure of the polymer obtained and the iductive effect index (I) which reprepresents the magnitude of the displacement of paired valence electrons on transition metal-halogen bond (MT-X) of the catalyst. This linear relationship also holds in dealing with the data published in the literature.

Key words: CATALYST, BUTADIENE, NEODYMIUM COMPOUNDS, ALUMINIUM COMPOUNDS, TRIETHYL GROUP, STEREOSPECIFIC POLYMERIZATION, INDUCTIVE EFFECT

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