中文摘要：

研究高乙烯基溶聚丁苯橡胶（SSBR）C2557A的结构和性能,并与乳聚丁苯橡胶（ESBR）1712和SSBR-T2530进行对比。结果表明：与ESBR-1712和SSBR-T2530相比,SSBR-C2557A的数均相对分子质量最大,相对分子质量分布指数介于两者之间,而其链结构中乙烯基质量分数较高。SSBR-C2557A硫化胶的高弹态动态模量较大,玻璃化温度在0℃附近,其抗湿滑性能优于ESBR-1712和SSBR-T2530,但损耗因子和压缩疲劳温升较高。

英文摘要：

The structure and properties of high-vinyl solution-polymerized SBR（SSBR） C2557A were investigated, and compared with those of emulsion-polymerized SBR（ESBR） 1712 and SSBR- T2530. The results showed that, compared with ESBR-1712 and SSBR-T2530, SSBR-C2557A pos- sessed higher vinyl content and larger number-average relative molecular weight, and its relative mo- lecular weight distribution index ranged between those of ESBR-1712 and SSBR-T2530. The vulcani- zates of SSBR-C2557A possessed higher dynamic modulus at large elastic state and the glass transition temperature close to 0 ＊C. The wet skid resistance of SSBR-C2557A vulcanizates was better than that of ESBR-1712 and SSBR-T2530, but the loss factor and compression fatigue temperature rise were higher.