The performances of ethylene polymerization catalysts based on III and commercial methylaluminoxane were investigated by reducing the content of free trimethylaluminum in methylaluminoxane by its reaction with 2,6-di-tert-butylphenol. This allowed optimization of the formulation of the catalyst, affording a high-molecular-weight linear polyethylene (PE) with a productivity [(1900 kg of PE/(mol of Ni x h)], ten-fold higher than that previously achieved for the same system adopting commercial methylaluminoxane not pre-treated with the above phenol derivative.
|Autori:||Carlini C; De Luise V; Fernandes EG; Martinelli M; Raspolli Galletti A; Sbrana G|
|Titolo:||Effect of free trimethylaluminum content in methylaluminoxane on performances of bis(salicylaldiminate)nickel(II)-based catalysts for ethylene polymerization|
|Anno del prodotto:||2005|
|Digital Object Identifier (DOI):||10.1002/marc.200500005|
|Appare nelle tipologie:||1.1 Articolo in rivista|