METHOD OF PREPARING CATALYSTS FOR POLYMERIZATION AND COPOLYMERIZATION OF CONJUGATED DIENES

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FIELD : polymerization catalysts.SUBSTANCE : catalysts, which may, in particular, be used in production of cis-1, 4-homopolymers and cis-1, 4-copolymers in synthetic rubber industry, are prepared by reaction of rare-earth element compound and conjugated diene in hydrocarbon solvent with preliminarily formed complex, the latter being prepared by chlorination agent-alkylation agent-Lewis base triple interaction.EFFECT : increased activity and stereoselectivity of catalyst.10 cl, 1 tbl, 20 ex