Published : 2022-08-26

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

Abstract

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.


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Białek, M., Korach, Ł., & Czaja, K. (2022). Copolymerization of ethylene with 1-hexene over vanadium catalysts immobilized on sol-gel silica. Polimery, 52(11-12), 889–892. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1486