本工作采用阴离子聚合方法,以工业二乙烯基苯为偶联剂,合成了星型SB嵌段聚合物。用凝胶渗透色谱、红外、核磁共振等分析方法进行了表征。用溶液制膜法进行了力学性能测试。实验结果表明,产物是具有二相结构的多臂星型热塑性弹性体,其物理机械性能优于同类线型和3—4臂星型嵌段聚合物。 In this work, an anionic polymerization method was used to synthesize a star SB block polymer with industrial divinylbenzene as coupling agent. Gel permeation chromatography, infrared, nuclear magnetic resonance and other analytical methods were characterized. The mechanical properties of the film were tested by solution casting method. The experimental results show that the product is a multi-arm star-shaped thermoplastic elastomer with a two-phase structure, and its physical and mechanical properties are superior to those of the same-type linear and 3-4-arm star block polymers.