Macromolecular Research

, Volume 12, Issue 4, pp 336–341

Ethylene polymerization using (n-BuCp)2ZrCl2 catalyst activated with a cross-linked MAO-supported cocatalyst

  • Keun Byoung Yoon

DOI: 10.1007/BF03218409

Cite this article as:
Yoon, K.B. Macromol. Res. (2004) 12: 336. doi:10.1007/BF03218409


A new type of cross-linked methylaluminoxane (MAO)-supported cocatalyst has been prepared by the reaction of a soluble MAO and a cross-liking agent such as an aromatic diamine compound. The cross-linked MAO-supported cocatalyst was used for the polymerization of ethylene in the presence of bis(n-butylcyclopentadienyl) zirconium dichloride, (n-BuCp)2ZrCl2. The catalyst activity of (n-BuCp)2ZrCl2 cocatalyzed with the new supported cocatalyst was higher than that of the commercial silica-supported MAO (SMAO) cocatalyst. The molecular weight and the bulk density of the polyethylene produced by using the new supported cocatalyst were slightly higher than those of polyethylene synthesized using commercial SMAO. The resulting polyethylene particles possess spherical morphologies with very few fine particles.


cross-linked MAO supported cocatalyst ethylene polymerization spherical morphology 

Copyright information

© The Polymer Society of Korea and Springer 2004

Authors and Affiliations

  • Keun Byoung Yoon
    • 1
  1. 1.Optical Interconnection TeamElectronics and Telecommunications Research Institute (ETRI)DaejeonKorea

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