| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a conjugated diene-based polymer by which a polymer composition excellent in fuel-saving properties can be obtained; to provide a polymer composition containing the conjugated diene-based polymer and a reinforcing agent; and to provide a method for producing the conjugated diene-based polymer. <P>SOLUTION: This conjugated diene-based polymer is obtained by reacting an alkoxysilane compound with one terminal of a polymer having a monomer unit based on a conjugated diene, a monomer unit based on a compound represented by formula (1) and a monomer unit based on a compound represented by formula (2), where in the formula (1), V<SP POS="POST">1</SP>represents a hydrocarbyl group having a polymerizable carbon-carbon double bond, and S<SP POS="POST">1</SP>represents a substituted silyl group; and in the formula (2), V<SP POS="POST">2</SP>represents a hydrocarbyl group having a polymerizable carbon-carbon double bond, and A<SP POS="POST">2</SP>represents a substituted amino group or a nitrogen-containing heterocyclic group. <P>COPYRIGHT: (C)2013,JPO&INPIT |
