METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER, MODIFIED CONJUGATED DIENE POLYMER, POLYMER COMPOSITION, CROSSLINKED BODY, TIRE AND COMPOUND

摘要

A modified conjugated diene-based polymer having high Mooney viscosity and good shape stability and exhibiting excellent processability and low heat build-up is obtained in as few steps as possible. The modified conjugated diene-based polymer is produced by a method of reacting a conjugated diene-based polymer having an active chain end, obtained by polymerizing a monomer containing a conjugated diene compound in the presence of an initiator that contains at least either of an alkali metal compound and an alkaline earth metal compound, with a compound [M] having two or more groups in total of at least either of a group "-C(R 1 )=N-A 1 " or a group "-N=C(R 1 )-A 1 " (where R 1 is a hydrogen atom or a hydrocarbyl group and A 1 is a monovalent group having an alkoxysilyl group.