| 摘要 |
To provide a conjugated diene rubber that is suitably used for providing a tire that is superior in low-heat-generating properties, wet-grip properties, and strength, a method for producing a conjugated diene rubber is provided which includes the steps of: (a) forming a polymer block (A) by using a polymerization initiator in an inert solvent, the polymer block (A) having an active terminal and containing a specific amount of an isoprene monomeric unit and a specific amount of of an aromatic vinyl monomeric unit; (b) forming a polymer block (B) having an active terminal and containing a specific amount of a 1,3-butadiene monomeric unit and, as needed, a specific amount of an aromatic vinyl monomeric unit, thereby obtaining a conjugated diene polymer chain having an active terminal and having the polymer block (A) and a polymer block (B); (c) bringing a specific amount of a predetermined denaturant into reaction with the active terminal of the conjugated diene polymer chain having the active terminal. |
