Chinese Journal of Magnetic Resonance ›› 1997, Vol. 14 ›› Issue (3): 211-215.

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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 Published:1997-06-05 Online:2018-01-22
  • Supported by:
    This project was supported by the National Natural Science Foundation of China

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