本文以三嵌段共聚物聚(苯乙烯-丁二烯-苯乙烯)(SBS)为研究对象,原子力显微镜(AFM)为研究手段,对PB段1,2结构的含量对SBS表面微相分离形貌的影响进行了研究,研究结果表明,无论采用甲苯还是环己烷为成膜溶剂,PS呈都圆柱状分散在连续的橡胶相中,但是随着聚丁二烯段1,2结构含量由28%增加到33%,其结构排列的有序性会发生相应下降。此外,本文还对制膜所选择的溶剂种类对嵌段共聚物形貌的影响进行了讨论。 In this paper, triblock copolymers of poly (styrene-butadiene-styrene) (SBS) as the research object, atomic force microscopy (AFM) as a research tool, PB content of 1, 2 structure on the SBS surface micro-phase separation The results show that PS is cylindrical dispersed in a continuous rubbery phase whether toluene or cyclohexane is used as a film-forming solvent, but with the polybutadiene 1,2 structure content From 28% to 33%, the order of its structure will be reduced accordingly. In addition, the influence of the solvent type on the morphology of block copolymers was also discussed.