para-Fluoro benzyl substituted bis(indenyl) metallocenes as catalyst precursors in ethene polymerization
作者:Gerhard Jany、Marina Gustafsson、Timo Repo、Erkki Aitola、José A Dobado、Martti Klinga、Markku Leskelä
DOI:10.1016/s0022-328x(97)00625-6
日期:1998.2
meso-isomers were separated from the 1:1 isomer mixtures. Complexation was performed by converting the ligand precursors (1-para-fluoro benzyl)indene (1a) and bis(3-(1-para-fluoro benzyl)indenyl)ethane (1b) into their lithio salts and further treatment with MCl4. To study the influence of the para-fluoro benzyl substituent in ethenepolymerization, the catalyst precursors 2–5 were activated with methylalumoxane