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N.M. Galashina, A.N. Klyamkina, N.Yu. Lobanova, G.A. Vinogradov, A.F. Moravsky



On the role of carbon-containing suppports in the stereospecific propylene polymerization

Polimery 1998, No 1, 24


DOI: dx.doi.org/10.14314/polimery.1998.024


Summary

The activity and stereospecificity of the catalytic system TiCl4-Et2AlCl of propylene polymerization was studied in relation to the nature of carbon-containing supports like graphite, fullerene C60, anthracene, polyacetylene, and fullerene soot. Graphite and fullerene soot were most effective supports. Isotactic polypropylene was formed at a high rate at definite (transition metal)/support ratios. The active centers of graphite and fullerene soot were shown to be different, the catalytic activity being higher in graphite.


Keywords: stereospecific polymerization of propylene, carbon-containing supports


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