METHOD OF PRODUCING CATALYST FOR COPOLYMERISATION OF BUTADIENE WITH ISOPRENE

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FIELD : technological processes. SUBSTANCE : invention relates to methods of producing a catalyst for copolymerisation of butadiene with isoprene and can be used in production of rubber of general purpose in the industry of synthetic rubber. Disclosed is a method of producing a catalyst for copolymerisation of butadiene with isoprene by reacting rare earth elements (REE) chlorides with a monohydric alcohol and a solvent, followed by mixing with a conjugated diene and an organoaluminium compound, method consists in the fact that monoatomic alcohol is 2-ethylhexyl alcohol in molar ratio of REE : 2-ethylhexyl alcohol = 1 : 1.8–3.0. EFFECT : disclosed method of synthesis enables to obtain a catalyst with high activity (yield of copolymer 97½-98, 8 %) with shorter synthesis time, leading to a copolymer with high tear resistance. 1 cl, 6 ex