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Polymerization of olefins with the TiCl4/SiO2 catalyst system modified with MgCl2

✍ Scribed by Luiz Claudio de Santa Maria; Kazuo Soga; Takeshi Shiono

Publisher: John Wiley and Sons
Year: 1994
Tongue: English
Weight: 402 KB
Volume: 195
Category: Article
ISSN: 1022-1352
DOI: 10.1002/macp.1994.021950726

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✦ Synopsis

Abstract

MgCl~2~/TiCl~4~/SiO~2~ catalysts were prepared by treating TiCl~4~/SiO~2~ with MgCl~2~ · 2THF (THF: tetrahydrofuran) at different Mg/Ti ratios. The catalysts were analysed by X‐ray, electron spin resonance (ESR), atomic absorption spectrometry to determine the crystal structure, oxidation state of titanium and also contents of Ti, Al and Mg. Homo‐ and copolymerizations of ethylene and propene were conducted with them using Al(i‐C~4~H~9~)~3~ as a cocatalyst. The results of polymerization were correlated with the analytical data of the catalyst.

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