| 摘要 |
<p>Provided are: a rubber composition that improves fuel economy and wet grip performance together while maintaining the balance between them; and a pneumatic tire whose component (in particular tread) includes the rubber composition. The invention relates to a rubber composition containing: a rubber component containing a copolymer; silica; and a diene rubber gel bearing a hydroxyl group, wherein the copolymer is obtained by copolymerization of 1,5-butadiene, styrene, and a compound represented by formula (I) below, has an amino group at a first chain end and a functional group containing at least one atom selected from the group consisting of nitrogen, oxygen, and silicon at a second chain end, and has a weight average molecular weight of 1.0×10 5 -2.5×10 6 , and the diene rubber gel has a Tg of -40 to -10°C, and is present in an amount of 10-30 parts by mass per 100 parts by mass of the rubber component;</p> |
