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

Li, Wei and Yang, Huaqin and Zhang, Jingjing and Mu, Jingshan and Gong, Dirong and Wang, Xiaodong (2016) Immobilization of isolated FI catalyst on polyhedral oligomeric silsesquioxane-functionalized silica for the synthesis of weakly entangled polyethylene. Chemical Communications, 52 (74). pp. 11092-11095. ISSN 1359-7345

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Abstract

Polyhedral oligomeric silsesquioxanes (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 active sites and hindering the chain overlap in polymerization. The heterogeneous catalyst exhibits considerable activity in the synthesis of weakly entangled polyethylene.

Item Type:
Journal Article
Journal or Publication Title:
Chemical Communications
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2504
Subjects:
ID Code:
136882
Deposited By:
Deposited On:
23 Sep 2019 11:55
Refereed?:
Yes
Published?:
Published
Last Modified:
07 Oct 2020 08:04