The anion polymerization the monomer of conjugate diene and the vinyl aromatic hydrocarbon mannered null conjugate diene and the vinyl

摘要

This invention makes monomer contact with the single functional value anionic polymerization initiator which is the organic substitution alkali metal compound other than the silicon functional group protective initiator in the solvent which is suited and the anion polymerizing monomer due to especially, being the method of forming the living polymer cement, the improvement, while, before or after polymerizing, includes the fact that it decreases the viscosity of the polymer cement by adding living polymer chain terminal 1 per equivalent at least 0.01 equivalent alkyl metal chemical compounds to cement, in this case, way as for the alkyl group of alkyl metal chemical compound, those do not exchange with living polymer chain end, selectionIt regards the method of being done.