New Catalyst Concepts for the Polymerization of Ethylene with Metallocenes
作者： A. Akimoto , A. Yano
DOI: 10.1007/978-3-642-60178-1_17
关键词:
摘要: Diphenylmethylidene(cyclopentadienyl)(2-dimethylamino-fluorenyl)zirconium dichloride (Ph2C(Cp)(2-Me2NFlu)ZrCl2) catalyst activated with dimethylanilinium tetrakis(pentafluorophenyl)borate (Me2PhNH·B(C6F5)4)/triisobutylaluminum (i-Bu3Al) or methylaluminoxane (MAO) produced a high molecular weight polyethylene activity at temperatures. The of the was significantly decreased an increase in concentration aluminum compounds, followed by formation vinyl end groups. This phenomenon not observed for Ph2C(Cp)(Flu)ZrCl2 based catalysts.
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