A diene rubber comprised of a conjugated diene homopolymer or a conjugated diene/aromatic vinyl copolymer; the homopolymer or copolymer having at least one end of its polymer chain a quaternary ammonium group to which four carbon atoms have been bound, and containing 0 to 60% of aromatic vinyl units; at least 10% of the bound conjugated diene units being a vinyl bond; and the homopolymer or copolymer further having a weight average molecular weight (Mw) of 100,000 to 2,000,000. This rubber exhibits well reduced heat build-up, which is an index of a well reduced rolling resistance, and having tensile strength and abrasion resistance.
一种二烯橡胶,由共轭二烯均聚物或共轭二烯/芳香族
乙烯基共聚物组成;均聚物或共聚物的聚合物链至少一端有一个与四个碳原子结合的季
铵基团,并含有 0 至 60% 的芳香族
乙烯基单元;结合的共轭二烯单元中至少有 10% 是
乙烯基键;均聚物或共聚物的重量平均分子量(Mw)为 100,000 至 2,000,000 。这种橡胶能很好地减少热量积聚(这是很好地减少滚动阻力的指标),并具有拉伸强度和耐磨性。