Ethylene Polymerization with Silica Support Bis(butylcyclopentadienyl)zirconium Dichloride as Catalyst

Abstract

In this work, a catalyst of bis(butylcyclopentadienyl)zirconium dichloride was prepared. The heterogeneous catalyst was prepared by immobilization of bis(butylcyclopentadienyl)zirconium dichloride, (n-But Cp)₂ZrCl₂, on silica support. Metal content (Zr %) was determined by inductively coupled plasma technique. Then ethylene polymerization was performed in the temperature range between 313 and 343 K. Metallocene catalyst system was active for ethylene polymerization in presence of methylaluminoxane by different Al/Zr ratio. The conditions for achieving of the highest polymerization yield were studied.