Immobilization of isolated FI catalyst on polyhedral oligomeric silsesquioxane-functionalized silica for the synthesis of weakly entangled polyethylene

Wei Li, Huaqin Yang, Jingjing Zhang, Jingshan Mu, Dirong Gong, Xiaodong Wang

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Abstract

Polyhedral oligomericsilsesquioxanes (POSSs) were adsorbed on methylaluminoxane-activated silica for the immobilization of fluorinated bis(phenoxyimine)Ti complexes (FI catalyst). These POSSs have been characterized as horizontal spacers isolating the activesites and hindering the chain overlap in polymerization.The heterogeneous catalyst exhibits considerable activity in the
synthesis of weakly entangled polyethylene.
Original languageEnglish
Pages (from-to)11092-11095
Number of pages4
JournalChemical Communications
Volume52
Issue number74
Early online date17 Aug 2016
DOIs
Publication statusPublished - 25 Sep 2016

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