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K. Szczegot, B. Sacher, K. Bosowska, I. Sibelska-Wiercigroch, W. Nowy-Wiechuła


A titanium-magnesium catalyst for the polymerization of ethylene on the basis of MgCl2–complexes with ethyl acetate


Polimery 1991, No 7-8-9, 274


DOI: dx.doi.org/10.14314/polimery.1991.274

Summary

The activity of titanium-magnesium catalysts in the low-pressure polymerization of ethylene was investigated. MgCl2 modified with ethyl acetate was used as catalyst carrier. The effect of main parameters of catalyst synthesis and of polymerization conditions (e.g. of Mg; Ti- molar ratios and of titanium concentration) and the effect of ethyl acetate (as an internal or as an external base) on the catalytic system activity was determined. The kinetics of ethylene polymerization in the case of catalysts containing ethyl acetate bound originally either with MgCl2 or TiCl4 was compared.


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