Ethene/norbornene copolymerization by [Me2Si(3-tertBuCp)(NtertBu)]TiCl2/MAO-catalyst     

Tran  Phu-Dennis  Kaminsky  Walter 《浙江大学学报(A卷英文版)》2003,4(2):121-130

Ethene/norbornene copolymerization by the catalyst system [Me₂Si(3-^tertBuCp)(N^tertBu)]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 valuesr _ξ and high alternation are determined. The number of isotactic alternating sequences is much higher than that of the syndiotactic alternating sequences.  相似文献   

Ethene/norbornene copolymerization by [Me2Si(3-tertBuCp)(NtertBu)]TiCl2/MAO-catalyst     

TRAN Phu-Dennis  KAMINSKY Walter 《浙江大学学报(A卷英文版)》2003,4(2)

Ethene/norbornene copolymerization by the catalyst system [Me2Si(3-tertBuCp)(NtertBu)]TiCl2/MAO was investigated in detail at 30℃, 60℃, and 90℃. 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.  相似文献   

Ethene/norbornene copolymerization by [Me_2Si(3-~(tert)BuCp)(N~(tert)Bu)]TiCl_2/MAO-catalyst     

TRAN Phu-Dennis  KAMINSKY Walter 《Journal of Zhejiang University. Science. B》2003,(2)

ＩＮＴＲＯＤＵＣＴＩＯＮＦｏｒｍｏｒｅｔｈａｎ 1 0ｙｅａｒｓ,ｅｔｈｅｎｅ ｎｏｒｂｏｒｎｅｎｅｃｏｐｏｌｙｍｅｒｓ (ＣＯＣｓ)ｈａｖｅｂｅｅｎｏｆｇｒｅａｔｉｎｔｅｒｅｓｔｔｏｉｎｄｕｓｔｒｙａｎｄｓｃｉｅｎｃｅ,ｂｅｃａｕｓｅｏｆｔｈｅｉｒｅｘｃｅｌ ｌｅ  相似文献