A method for producing modified polymer on the basis of konjungiertem diene, modified polymer on the basis of konjungiertem diene and a polymer composition

摘要

An object of the present invention, there is a method for the production of a modified polymer on the basis of a conjugated diene, which is suitable for the preparation of a polymer composition which, in the effect is excellent in the saving of fuel costs. The present invention provides a process for the production of a modified polymer on the basis of a conjugated diene, comprising reacting a polymer based on a conjugated diene, of which a monomer unit on the basis of a conjugated diene compound and a monomer unit on the basis of a compound represented by the following formula (1) with an organometallic compound, and reacting the resulting reaction product with a hydrocarbyl radical oxysilane connection: where r¹¹, R¹², R¹³, R¹⁴ and r¹⁵ in each case a hydrogen atom or an alkyl radical are, at least one of r¹¹, R¹², R¹³, R¹⁴ and r¹⁵ an alkyl radical, r is¹⁶, R¹⁷ and r¹⁸ in each case are a hydrogen atom or a hydrocarbyl radical, r¹⁹ a hydrocarbylene radical and k is 0 or 1 has the meaning.