FIELD: polymerization of 1-olefins. SUBSTANCE: solid component of desired catalyst is prepared by interaction of silicium oxide, soluble organomagnesium compound, SiCl4-containing agent, alcohol, TiCl4 and ester of dibasic carboxylic acid, the process is carried out in the presence of inert liquid. Said interaction is followed by extraction, TiCl4-containing compound is used as extractive liquid. Proposed catalytic system enable controlling of molecular weight of the product. EFFECT: improves quality of desired polymer.
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