不同SEBS结构与性能关系探究

Study of the Relationship Between Performance and Structure of Different SEBS

高聚物的性能取决于结构。本文以两种苯乙烯-乙烯-丁烯-苯乙烯嵌段共聚物(SEBS)为研究对象,通过红外、核磁、差示扫描量热法和动态力学分析对其结构进行了剖析,并对其制备的大输液膜制品的形貌和性能进行了表征。结果表明,SEBS中硬段含量、软段成分及不饱和度都会对其制品性能产生影响。

The performance of polymers is determined by its structure. In this paper, the structure of two kinds of styrene-ethylene/butylene-styrene（SEBS） block copolymers was analyzed by IR,1HNMR, DSC and DMA, and the morphology and performance of the infusion film prepared by these SEBS materials was characterized. The results showed that the content of the hard segment, the component and degree of unsaturation of the soft segment had effect on the performance of the product.