METHOD OF HYDROGENATED CONJUGATED DIOLEFIN POLYMERS AND COPOLYMERS PREPARATION

摘要

A method of hydrogenated conjugated diolefin polymers preparation which is terminating a living polymer obtained by polymerising or copolymerising at least a conjugated diolefin with an organo-alkali metal polymerisation initiator in a suitable solvent, by the addition of hydrogen, and effecting selective hydrogenation of the unsaturated double bonds in the conjugated diolefin units of the terminated polymer by contacting the polymer, in the absence of hydrocarbon lithium and alkoxy lithium compounds, with hydrogen in the presence of at least one bis(cyclopentadienyl)titanium compound.