Study of metallocene supported on porous and nonporous silica for the polymerization of ethylene

Abstract

Porous and nonporous silicas are good supports for the synthesis of coordinative heterogeneous catalysts for ethylene polymerization. The catalytic activity of nonporous Aerosil depends critically on the percentage of incorporated zirconium. The calcination of the support also affects the activity, showing the best results with nonporous silica at 1000 degrees C, and with porous silica at 800 degrees C.