Borane-functionalized oxide supports: development of active supported metallocene catalysts at low aluminoxane loading

J Tian, S Wang, Y Feng, J Li, S Collins

Index: Tian, Jun; Wang, Shaotian; Feng, Yuding; Li, Jieming; Collins, Scott Journal of Molecular Catalysis A: Chemical, 1999 , vol. 144, # 1 p. 137 - 150

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Citation Number: 32

Abstract

Treatment of hydroxylated silica or alumina with tris (perfluorophenyl) borane (1), bis (perfluorophenyl) borane (2) or bis (perfluorophenyl) boron chloride (3), provides borane- functionalized supports of variable composition, as revealed by in situ monitoring by 19F NMR spectroscopy and/or elemental analysis. These chemically treated supports can be impregnated with Cp2ZrMe2 to provide supported catalysts for ethylene polymerization. ...