波谱学杂志 ›› 1997, Vol. 14 ›› Issue (3): 211-215.

• 研究论文 • 上一篇    下一篇

丙烯聚合负载型Ziegler-Natta催化剂的ESR研究

徐君庭, 封麟先, 杨士林   

  1. 浙江大学高分子科学与工程学系, 杭州 310027
  • 收稿日期:1996-11-18 出版日期:1997-06-05 发布日期:2018-01-22
  • 作者简介:徐君庭,男,28岁,博士,讲师
  • 基金资助:
    This project was supported by the National Natural Science Foundation of China

ESR STUDY ON SUPPORTED ZIEGLER-NATTA CATALYSIS FOR PROPYLENE POLYMERIZATION

Xu Junting, Fang Linxian, Yang Shilin   

  1. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027
  • Received:1996-11-18 Online:1997-06-05 Published:2018-01-22
  • Supported by:
    This project was supported by the National Natural Science Foundation of China

摘要: 用ESR方法对MgCl2负载的钛系Ziegier-Natta催化剂进行了研究,获得了分辩率较好的谱图,并结合前人的工作将信号的归属同钛原子在MgCl2上的负载情况对应起来.同时考察了内外给电子化合物对ESR谱图的影响,探讨了它们可能的作用机理.

关键词: ESR, Ziegler-Natta催化剂, 聚丙烯

Abstract: ESR spectra of the catalyst for propylene polymerization MgCl2/TiCl4/di-n-butyl phthalate (DNBP)-AlEt3/diophenyl dimethoxyl silane (DPDMS) with better resolution was obtained. The situations of Ti ions supported on MgCl2 and the assignments of observed signals were correlated. The influence of electron donors on the ESR spectra of catalyst was also investigated.

Key words: ESR, Ziegler-Natta catalyst, Polypropylene