FIELD: chemistry.
SUBSTANCE: invention relates to method of obtaining cis-1,4-(co)polymers of conjugated dienes and can be used in production of synthetic rubber, and obtained materials - in tire and rubber industry. Method of obtaining cis-1,4-(co)polymers of conjugated dienes is realised by polymerisation of conjugated dienes or their copolymerisation with each other in medium of hydrocarbon solvent in presence of molecular weight (MW) regulator under action of catalytic complex, consisting of neodymium compound, halogen-free aluminium-organic compound, conjugated diene, necessary for formation of catalytic complex, and halogen source, catalytic complex is obtained in medium of hydrocarbon solvent by interaction of neodymium compound with conjugated diene, necessary for catalytic complex formation, with further fractional addition of halogen-free aluminium-organic compound with further supply of halogen source, of halogen-free aluminium-organic compound being selected from group of compounds, which contains trialkylaluminium, dialkylaluminium hydride, alkylalumoxane.
EFFECT: achieved technical result lies in reduction of consumption norms of catalytic system components due to increase of its activity, as well as in reduction of (co)polymerisation reaction time.
13 cl, 2 tbl, 26 ex
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