| abstract |
A graft copolymer having a polymer that can exhibit a lower critical solution temperature (LCST) in the side chain, a method for producing the same, a rubber composition, and a tire are provided. A polymer main chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer, and a polymer side chain bonded to the main chain, the side chain having a lower limit A copolymer comprising a polymer capable of exhibiting a critical solution temperature (LCST), and a method of making the copolymer. Further included is a pneumatic tire having a rubber composition and a tread comprising the copolymer. [Selection] Figure 1 |