| 摘要 |
<p>The method for producing a modified conjugated diene based (co)polymer, according to the present invention comprises
a step (a) for obtaining a primarily modified polymer by conducting a primary modification reaction wherein at least one member selected from the group consisting of an alkoxysilane compound and a silanol compound is introduced into the active alkali metal terminal of a conjugated diene based (co)polymer having an active alkali metal terminal, and
a step (b) for obtaining a secondarily modified polymer (a modified conjugated diene based (co)polymer) by subjecting the above-obtained primarily modified polymer to reactions including the following step (b1) and step (b2), and can produce a conjugated diene based (co)polymer having a high Mooney viscosity and excellent shape stability.
Step (a): a reaction with a condensation accelerator containing a metal element.
Step (b): a reaction with at least one member selected from the group consisting of inorganic acids and metal halides.</p> |
