FIELD: chemical or physical processes; method of production.
SUBSTANCE: invention relates to production of modified rubber by anionic solution polymerisation. Disclosed is a method of producing rubber by anionic solution polymerisation of a conjugated diene or by copolymerisation of a conjugated diene and a vinyl aromatic compound in an organic solvent medium in the presence of a lithium-organic N, N-disubstituted aminomethylstyrol oligomer initiator, a special N, N-disubstituted aminomethylstyrene monomer and a terminal functionalising agent of general formula (CH3)2Hal2Si, where Hal is a halogen atom. Disclosed also is rubber for making a rubber composition obtained by the disclosed method, a rubber composition for making tires, comprising said rubber, and use thereof for making a tread of car tires.
EFFECT: technical result is complex modification of rubber at stage of polymerisation enables to obtain rubber compositions with its use, suitable for production of tires with reduced rolling resistance and improved adhesion with wet road.
17 cl, 5 tbl, 12 ex
