| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition capable of improving fuel consumption, wet-grip performance, and abrasion resistance in good balance, and a pneumatic tire using the same.SOLUTION: A rubber composition contains a conjugated diene-based copolymer (A) which contains a monomer unit based on conjugated diene, a monomer unit based on a compound as shown in formula (1), and a monomer unit based on a compound as shown in formula (2), and in which at least one end of the copolymer is modified by the following compound (G), a conjugated diene-based copolymer (B), and silica. A content of silica to a rubber component 100 parts by weight shall be 5-150 parts by weight. In the formulas (1) and (2), (V, Vstand for hydrocarbyl group having a polymerization carbon-carbon double bond, Sfor a substituted silyl group, Afor a substituted amino group or the nitrogen-containing heterocyclic group.) The compound (G) is: at least one compound selected from the compound group consisting of compounds having an amino group that may have a substituent and a carbonyl group, and compounds having an amino group that may have a substituent and a thiocarbonyl group. |
