METHOD OF MODIFIED CONJUGATED DIENE POLYMER OBTAINMENT, MODIFIED CONJUGATED DIENE POLYMER OBTAINED BY CLAIMED METHOD, RUBBER COMPOSITION CONTAINING CLAIMED POLYMER

摘要

FIELD: chemistry.;SUBSTANCE: invention claims method of obtaining modified conjugated diene polymer, involving modification reaction of reactive end fragment of conjugated diene polymer with vinyl fragment content under 10% and cis-1,4-bond content over 75%, with alkoxysilane compound featuring at least one functional group selected out of epoxy, isocyanate and carboxylic groups, and reaction of alkoxysilane compound (residue) condensation in aqueous solution at pH within 9 to 14 and temperature of 85 to 180°C in the presence of titanium-containing compound as condensation promoter.;EFFECT: practically feasible method of modified conjugated diene polymer obtainment, enabling obtainment of polymer with excellent wear resistance and mechanical properties, with hardening and heat dissipation reduction effect on rubber composition.;16 cl, 3 tbl, 20 ex