| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a conjugated diene polymer capable of providing conjugated diene polymer having small content of a gel component and residual solvents.SOLUTION: The manufacturing method of a conjugated diene copolymer includes a process of polymerizing a conjugated diene monomer or polymerizing the conjugated diene monomer and an aromatic vinyl monomer with an organic alkali metal and/or an organic alkali earth metal as a polymerization initiator and the hydrocarbon solvents contain a cyclic aliphatic C6 component consisting of cyclic aliphatic hydrocarbon having 6 carbon atoms of 1 to 30 mass% based on mass of the all hydrocarbon solvents.SELECTED DRAWING: None |
