波谱学杂志 ›› 1993, Vol. 10 ›› Issue (1): 25-30.

• 研究论文 • 上一篇    下一篇

以VO2+为自旋探针的配位共聚催化剂分子筛载体的ESR研究

王立, 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:1992-01-25 修回日期:1992-09-18 出版日期:1993-03-05 发布日期:2018-01-20
  • 基金资助:
    Program supported by National Natural Science Foundation of China

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 Online:1993-03-05 Published:2018-01-20
  • Supported by:
    Program supported by National Natural Science Foundation of China

摘要: 以VO2+为自旋探针,观察了VO2+负载的分子筛载体的微环境,在计算机上模拟了复杂的多中心的实验ESR谱,发现VO2+在载体上的分散状况不仅取决于制备条件,也和分子筛的种类有关。利用这种方法,可得探针在载体上所处微环境的信息,进而可用于指导配位聚合催化剂载体的选择。

关键词: ESR, 配位聚合催化剂, 分子筛

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