Chinese Journal of Magnetic Resonance ›› 1993, Vol. 10 ›› Issue (1): 25-30.

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ESR STUDY ON VO2+ PROBED ZEOLITE CARRIERS OF CATALYSTS FOR COPOLYMERIZATION

Wang Li, Feng Linxian, Yang Shilin   

  1. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027
  • Received:1992-01-25 Revised:1992-09-18 Published:1993-03-05 Online:2018-01-20
  • Supported by:
    Program supported by National Natural Science Foundation of China

Abstract: Using VO2+ as spin probe, the micro-environment of VO2+ supported on zeolite was observed by ESR technique. Computer program was built for simulating ESR spectra with complicated and multi-centers. It was found that the dispersion character of VO2+ is dependent upon the preparation conditions employed and the carriers chosen. This may serve as a new method to get micro-environment information of carriers and can be used in the choice of carriers of coordination catalysts.

Key words: ESR, Coordination copolymerization catalyst, Zeolite