High comonomer selectivity in ethylene/hexene copolymerization by unbridged indenyl metallocenes

M Dankova, RM Waymouth

Index: Dankova, Michaela; Waymouth, Robert M. Macromolecules, 2003 , vol. 36, # 11 p. 3815 - 3820

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Citation Number: 37

Abstract

Catalysts derived from unbridged 2-arylindene metallocenes of Hf and Zr are active for ethylene/hexene copolymerization and show a much higher selectivity toward hexene than unsubstituted bis (indenyl) metallocenes. The ligand substitution pattern and the nature of the metal ion have a strong influence on the ability of unbridged 2-arylindenyl metallocenes to incorporate 1-hexene comonomer in ethylene/hexene copolymerizations. Our data ...