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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2003, Vol. 4 Issue (2): 121-130    DOI: 10.1631/jzus.2003.0121
Chemistry & Biochemical Engineering     
Ethene/norbornene copolymerization by [Me2Si(3-tertBuCp)(NtertBu)]TiCl2/MAO-catalyst
TRAN Phu-Dennis, KAMINSKY Walter
Institute of Technical and Macromolecular Chemistry, University of Hamburg, Germany
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Abstract  Ethene/norbornene copolymerization by the catalyst system [Me2Si(3-tertBuCp)(NtertBu)]TiCl2/MAO was investigated in detail at 30°C, 60°C, and 90°C. A mass flow controller was used in this work to obtain kinetic data and investigate temperature\'s effects on activity, norbornene incorporation, copolymerization parameter, microstructure, glass transition temperature, and molar masses were described. High copolymerization values rE and high alternation are determined. The number of isotactic alternating sequences is much higher than that of the syndiotactic alternating sequences.

Key words： Polymerization      Ethene/norbornene copolymers      Constrained geometry catalyst      Temperature effects     
Received: 16 December 2002     
CLC:  O632.12  
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TRAN Phu-Dennis
KAMINSKY Walter
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TRAN Phu-Dennis, KAMINSKY Walter. Ethene/norbornene copolymerization by [Me2Si(3-tertBuCp)(NtertBu)]TiCl2/MAO-catalyst. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2003, 4(2): 121-130.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2003.0121     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2003/V4/I2/121

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