Preparation of High Transparent Olefin Copolymer with Metallocene Catalyst

  • Lee, Dong-Ho (Department of Chemical Engineering, Keimyung University) ;
  • Choi, Yeon-Seok (Department of Polymer Science, Kyungpook National University) ;
  • Ha, Ki-Ryong (Department of Chemical Engineering, Keimyung University)
  • Published : 2003.07.09

Abstract

The copolymerization of ethylene and norbornene was carried out with ansa-metallocene and modified methylaluminoxane (MMAO) cocatalyst. The copolymerization behavior was changed with the structure of metallocene catalysts. In addition the catalyst activity was dependent on the structure of MMAO, i.e.. MMAO-4 which contains less i-butyl group compared to MMAO-3A exhibited higher catalyst activity than MMAO-3A. The glass transition temperature and the composition of the produced copolymer were not affected by MMAO type.

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