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M. Białek, K. Czaja

Synthesis and characterization of ethylene-1-hexene copolymers

prepared by using MgCl2(THF)2-supported Ziegler—Natta catalysts

RAPID COMMUNICATION

Polimery 2000, No 4, 293


DOI: dx.doi.org/10.14314/polimery.2000.293


Summary

Ethylene was copolymerized with 1-hexene over vanadium (VOCl3 and VCl4) and titanium (TiCl4) catalysts supported on MgCl2(THF)2 and activated with Et2AlCl. So far these catalyst systems have not been known as initiators of ethylene-1-hexene copolymerization. The vanadium catalysts were more active than the titanium catalyst and, at identical comonomer concentrations in the feed, gave rise to a greater incorporation of 1-hexene into the copolymer. Even at relatively low fractions of 1-hexene, the MgCl2(THF)2-supported catalysts affected much the copolymer properties like density, melting point and crystallinity.
Keywords: copolymerization of ethylene with 1-hexene, VOCl3, VCl4 and TiCl4 catalysts supported on MgCl2(THP)2 and activated with Et2AlCl, density, melting point and crystallinity of copolymers
M. Białek, K. Czaja (304.7 KB)
Synthesis and characterization of ethylene-1-hexene copolymers prepared by using MgCl2(THF)2-supported Ziegler—Natta catalysts - RAPID COMMUNICATION