Olefin polymerization on immobilized zirconocene catalysts containing alkylaluminoxanes synthesized on the support surface

Previously described Cr-montmorillonite (Cr-MMT) was found to retain reactivity in the ethylene polymerization reaction regardless of which alkyl-metal was used for workup in the preparation process, as long as alkylaluminium was used as a cocatalyst in the actual polymerization reaction. Introduction of hydrogen pressure was found to regulate the polymerization to give the product polymer with a narrower weight distribution, albeit with a somewhat smaller average molecular weight. Supporting metallocene onto Cr-MMT pro-duced a binuclear catalyst system which gave rise to bimodal polyethylene (PE). Polymer composition of the produced high density polyethylenes (HDPEs) could be controlled by changing factors such as the polymerization conditions and the identity of the metallocene compounds.

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Olefin polymerizations with zirconocene supported on SiO2 modified by MgO, NaOH and LiOH

Yamamoto¹

2009

Applied Catalysis A: General

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Olefin polymerization on immobilized zirconocene catalysts containing alkylaluminoxanes synthesized on the support surface

Cited by 7 publications

References 16 publications

Polyolefin–Clay Nanocomposites byIn‐situPolymerization

Polyolefin–Clay Nanocomposites byIn‐situPolymerization

Preparation of bimodal HDPEs with metallocene on Cr‐montmorillonite support

Olefin polymerizations with zirconocene supported on SiO2 modified by MgO, NaOH and LiOH

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