FIELD: technological processes.
SUBSTANCE: invention relates to a method of producing polydienes. Method of producing polydiene involves the steps of: i) first obtaining an active catalyst through introduction of a lanthanide-containing compound, an alkylating agent, a halogen source and optionally a monomer; (ii) regardless of step (i), adding the pre-formed catalyst to the conjugated diene monomer to be polymerised; (iii) independently of step (i), introducing amine into a conjugated diene monomer to be polymerised, where the ratio of the amine to the lanthanide-containing compound is at least 20:1; and (iv) polymerisation of a conjugated diene monomer to be polymerised using a catalyst prepared in the presence of an amine to obtain a polymer with reactive ends, wherein the amine and the pre-formed catalyst are separately and independently introduced into the conjugated diene monomer to be polymerised. Version of method is described.
EFFECT: method takes place at speeds used in industry without significant risk of uncontrolled polymerisation and clogging of the reactor; the method enables to obtain a polymer with high content of cis-1,4-bond and high functionality.
10 cl, 9 ex
