Chinese Journal of Magnetic Resonance ›› 2011, Vol. 28 ›› Issue (4): 551-563.

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Recent Progresses in ESR Studies on Catalysts for Olefin Polymerization

 ZHU Feng, WANG Li*, YU Hao-Jie, ZhAO Yu-Lai   

  1. State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2011-05-18 Revised:2011-07-04 Online:2011-12-05 Published:2011-12-05
  • Supported by:

    浙江省重大科技专项(优先课题)国际科技合作资助项目(2008C14089).

Abstract:

Many polymerization catalysts have different transition-metal centers. In situ- ESR can be used to monitor these transition metal centers having one or more unpaired electrons. Thus the reaction route and mechanisms of polymerization can be investigated by in situ ESR. In this paper, recent research progresses in ESR studies on catalysts for olefin polymerization are reviewed, including common olefin polymerization catalysts based on Ti, Ni, V and Cr.

Key words: electron spin resonance, mechanism, catalyst, olefin polymerization

CLC Number: