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
Full text not available from this repository.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.