A rubber composition containing 100 parts by mass of a rubber component (A) comprising at least one rubber of natural rubber and synthetic diene base rubbers and 5 to 120 parts by mass of a low molecular weight aromatic vinyl compound-diene compound copolymer (B) having a weight average molecular weight (measured by gel permeation chromatography and reduced to polystyrene) of 1,000 to 300,000 and, wherein the copolymer (B) comprises 0 to 80 % by mass of an aromatic vinyl compound and has a vinyl bond content of 0 to 80 % by mass in the part of the diene compound, and has a cross-linkable functional group at an end. Further, tires produced by using the rubber composition are provided.
一种橡胶组合物,含有 100 份(质量份)的橡胶组分(A),其中包括至少一种
天然橡胶和合成二烯基橡胶,以及 5 至 120 份(质量份)的低分子量芳香族
乙烯基化合物-二烯化合物共聚物(B),其重量平均分子量(通过凝胶渗透色谱法测定并还原为聚
苯乙烯)为 1、000至300,000,其中共聚物(B)包含0至80%(质量百分比)的芳香族
乙烯基化合物,在二烯化合物部分中
乙烯基键含量为0至80%(质量百分比),并在末端具有可交联的官能团。此外,还提供了使用该橡胶组合物生产的轮胎。