Synthesis of zirconocene complexes and their use in slurry-phase polymerisation of ethylene

Abstract

A new family of zirconocene complexes of the type (3-RInd#)2ZrX2 (where Ind# = C6Me5H and R = Me, Et and Ph) have been synthesised and fully characterised.

Polymethylaluminoxane organic frameworks (sMAOF) – highly active supports for slurry phase ethylene polymerisation

“…In 2015, O'Hare and co-workers reported the laboratory scale synthesis and detailed characterisation of sMAO, 70 and demonstrated its function as a solid-phase support, scavenger and activator in slurry phase ethylene polymerisation. [71][72][73] Observed activities are remarkably higher for sMAO-based supported metallocene catalysts than for those based on MAO-impregnated inorganic supports; for example, sMAO-rac-ethylenebis(1permethylindenyl) zirconium dichloride is over 3× more active than the analogous silica-supported MAO system (10.7 × 10 3 vs.…”