Provided are a method of producing a graft copolymer, the method involving subjecting a radically polymerizable monomer to living radical graft polymerization with a rubber component formed of a natural rubber and/or a synthetic diene-based rubber in an aqueous medium in the presence of a polymerization control agent, a rubber composition containing the graft copolymer obtained by the method, and a tire obtained by using the rubber composition in any one of its tire members. Further provided are a method of efficiently producing a graft copolymer, the method involving subjecting a radically polymerizable monomer, in particular, a functional group-containing radically polymerizable monomer to living radical graft polymerization with the natural rubber and/or the synthetic diene-based rubber, a rubber composition containing the graft copolymer obtained by the method and excellent in, for example, low heat generating property, wear resistance, and fracture characteristic, and a tire obtained by using the rubber composition in any one of its tire members and having the above-mentioned properties.
提供了一种生产接枝共聚物的方法,该方法涉及在聚合控制剂存在的情况下,在
水介质中将可辐射聚合单体与由
天然橡胶和/或合成二烯基橡胶形成的橡胶组分进行活自由基接枝聚合;提供了一种含有通过该方法获得的接枝共聚物的橡胶组合物;以及一种通过将该橡胶组合物用于任何一种轮胎部件而获得的轮胎。进一步提供了一种高效生产接枝共聚物的方法,该方法涉及将可辐射聚合单体,特别是含官能团的可辐射聚合单体与
天然橡胶和/或合成二烯基橡胶进行活自由基接枝聚合;一种含有通过该方法获得的接枝共聚物的橡胶组合物,该橡胶组合物在例如低发热性能、耐磨性和断裂特性方面具有优异性能;以及一种通过将该橡胶组合物用于其任一轮胎部件而获得的轮胎,该轮胎具有上述性能。