Copolymerization of ethylene with 1-hexene over vanadium catalysts immobilized on sol-gel silica

被引：0

作者：

Bialek, Marzena ^{[1
]}

Korach, Lukasz ^{[1
]}

Czaja, Krystyna ^{[1
]}

机构：

[1] University of Opole, Institute of Chemistry, 45-052 Opole

来源：

Polimery/Polymers | 2007年 / 52卷 / 11-12期

关键词：

Ethylene copolymerization; Organometallic catalyst; Silica support; Sol-gel technique;

D O I：

10.14314/polimery.2007.889

中图分类号：

学科分类号：

摘要：

Silica-type materials with different structure and morphology, synthesized using sol-gel process, were applied as a carriers of organometallic catalytic systems (VOCl3/AlEt2Cl) for ethylene-1-hexene copolymerization. Carrier materials, prior to immobilization of the vanadium compound, were pre-treated using two modes: one-step thermal modification and two-steps modification including additional reaction with AlEt2Cl. It was found that the carrier's type and way of it's modification significantly influence the catalysts activity in ethylene-1-hexene copolymerization as well as the incorporation of higher 1-olefin. The favourable effect of two-step modification mode on the catalysts activity and 1-hexene incorporation efficiency was proposed.

引用

页码：889 / 892

页数：3