Al-, Nb-, and Ta-Based Perfluoroaryloxide Anions as Cocatalysts for Metallocene-Mediated Ziegler−Natta Olefin Polymerization
作者:Yimin Sun、Matthew V. Metz、Charlotte L. Stern、Tobin J. Marks
DOI:10.1021/om990946l
日期:2000.5.1
Perfluoroaryloxide salts of the formula Ph3C+-Al(OC6F5)(4)(-) and Ph3C+M(OC6F5)(6)(-) (M = Nb, Ta) have been synthesized and characterized. In combination with sterically encumbered zirconocene dimethyl complexes, they yield active ethylene polymerization catalysts.