Patent ID: 8293832

Claim:
A method of manufacturing a conjugated diene polymer comprising steps A and B below: step A: polymerizing a monomer component containing a conjugated diene and a compound represented by Formula (1) below by an alkali metal catalyst in a hydrocarbon solvent using 0.01 to 20% by weight of the compound represented by Formula (1) (relative to 100% by weight of the total amount of the monomer component used), thereby giving a polymer having the alkali metal derived from the alkali metal catalyst at least at one end of a polymer chain having a monomer unit based on the conjugated diene and a monomer unit based on the compound represented by Formula (1) below, and step B: reacting the polymer obtained in step A and a compound represented by Formula (2) below, wherein R 11 represents a hydrogen atom or a hydrocarbyl group, m is 0 or 1, R 12 represents a hydrocarbylene group, and A represents a nitrogen-containing heterocyclic group, wherein n represents an integer of 1 to 10; R 21 , R 22 and R 23 independently represent a hydrocarbyl group or a hydrocarbyloxy group, and at least one of R 21 , R 22 and R 23 is a hydrocarbyloxy group; R 24 and R 25 independently represent a hydrogen atom or a hydrocarbyl group that may have a nitrogen atom and/or an oxygen atom, or R 24 and R 25 are bonded to represent a hydrocarbylene group that may have a nitrogen atom and/or an oxygen atom, or R 24 and R 25 form one group representing a group bonded to a nitrogen atom by a double bond.