Polymerization of Phenyl Substituted Cyclic Olefins with Metallocene/Aluminoxane Catalysts
The ethene/phenylnorbornene and ethene/phenyl-DMON copolymerization was investigated by using two Cs-symmetric ([Me2C (Fluo) (Cp)] ZrCl2 III), [Ph2C (Fluo) (Cp)] ZrCl2 IV) and two C2-symmetric ([Me2Si (Ind)2] ZrCl2 I), [Ph2Si (Ind)2] ZrCl2 II) catalysts with methylaluminoxane (MAO) as cocatalysts. The copolymerization parameters are calculated according to 13C-NMR measurements. The Cs-symmetric catalysts are very suitable for yielding amorphous copolymers with glass transition temperatures of 230 °C and molecular masses greater than 100000 g × mol−1. These copolymers could be used as materials for optical discs and fibres
KeywordsGlass Transition Temperature Incorporation Rate High Glass Transition Temperature Cyclic Olefin Ethene Copolymer
List of Symbols and Abbreviations
1,4,5,8-dimethano-l, 2,3,4,4a, 5,8,8a-octahydro-naphthalene
glass transition temperature
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