Insights into the activation of silica-supported metallocene olefin polymerization catalysts by methylaluminoxane

Marjolein E.Z. Velthoen,Jelle M. Boereboom,Rosa E. Bulo,Bert M. Weckhuysen

Catalysis Today（2019）

引用 27|浏览6

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摘要

•Metallocene polymerization catalysts are activated by methylaluminoxane (MAO) as co-catalyst.•AlMe2+ species inherent to the MAO are responsible for this metallocene activation.•High MAO loading is required to form enough active metallocene species for olefin polymerization.•Silica-supported metallocenes adopt a polymeric structure in the absence of MAO.

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关键词

Metallocenes,Methylaluminoxane,Olefin polymerization,Activation,UV–vis DR spectroscopy,TD-DFT

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