abstract |
A conjugated diene polymer capable of obtaining a polymer composition having excellent wear resistance, a polymer composition comprising the conjugated diene polymer and a reinforcing agent such as silica, and the conjugate To provide a method for producing a diene polymer. A conjugated diene polymer having a monomer unit based on a conjugated diene and a monomer unit based on a substituted diphenylethylene, wherein at least one end of the polymer is represented by a compound represented by the following formula (2). A conjugated diene polymer in which is modified. (N is an integer of 1 to 10, R 3 , R 4 and R 5 represent a hydrocarbyl group having 1 to 10 carbon atoms or a hydrocarbyloxy group having 1 to 10 carbon atoms, and R 3 , R 4 and At least one of R 5 is a hydrocarbyloxy group, and R 6 represents a group having at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom. [Selection figure] None |