本工作将Leibler等近期关于含非晶两嵌段共聚物“稀固体溶液”的胶束理论推广并应用到含结晶三嵌段共聚物的“稀固体溶液”.对微量聚氧化乙烯-聚苯乙烯-聚氧化乙烯三嵌段共聚物/聚氧化乙烯均聚物共混体系的结晶行为进行了研究.结果表明,共聚物胶束在共混体系的结晶过程中可以起到成核剂的作用.这对改善结晶均聚物的性能具有一定的应用价值. In this work, Leibler and other recent micellar theories about “dilute solid solution” containing amorphous diblock copolymer were generalized and applied to “dilute solid solution” containing crystalline triblock copolymer. Ethylene-polyoxyethylene triblock copolymer / polyethylene oxide homopolymer blend system was studied.The results show that the copolymer micelles can play the role of nucleating agent in the crystallization process of the blend system This has certain application value to improve the properties of crystalline homopolymer.