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Ethylene polymerization using diatomite as support for zirconocene dichloride/modified methylaluminoxane

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Abstract

In this paper, we report on a zirconocene dichloride/modified methylaluminoxane catalyst system supported on a natural diatomite in order to provide ethylene polymerization catalysts for gas phase or slurry processes. Such natural diatomite support exhibited similar properties of silica-based molecular sieve because of their similar chemical composition and porous structure. The supported catalysts were shown to be highly active and to form flocculent and fibrous polyethylene as proven by scanning electron microscopy.

Graphic abstract

A natural resource diatomite was successfully applied as a support for zirconocene by us. Such catalyst system performed as a silica-based molecular sieve supported zirconocene in the ethylene polymerization. Polyethylene with flocculent and fibrous structure was obtained.

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Acknowledgements

This work was supported by The National Natural Science Foundation of China (Grant No. 21104073) and The State Key Laboratory of Advanced Power Transmission Technology (Grant No. GEIRI-SKL-2018–012).

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Authors and Affiliations

  1. State Key Laboratory of Advanced Power Transmission Technology, Beijing, 102209, China

    Yu Xiao & wei Yang

  2. Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China

    Jinhua Lei & Guangyuan Zhou

Authors
  1. Yu Xiao
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  2. wei Yang
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  3. Jinhua Lei
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  4. Guangyuan Zhou
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Correspondence to Jinhua Lei or Guangyuan Zhou.

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Xiao, Y., Yang, w., Lei, J. et al. Ethylene polymerization using diatomite as support for zirconocene dichloride/modified methylaluminoxane. Polym. Bull. 78, 529–537 (2021). https://doi.org/10.1007/s00289-020-03229-w

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  • DOI: https://doi.org/10.1007/s00289-020-03229-w

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