嵌段共聚物微胶束行为的研究Ⅲ.动态激光光散射法研究聚(苯乙烯-异戊二烯)星形嵌段共聚物在选择性溶剂中微胶束的形成过程
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摘要: 采用动态激光光散射研究聚(苯乙烯-异成二烯)(PS—PI)星形嵌段共聚物在选择性溶剂二氧六环/甲醇混合体系中微胶束的形成过程。讨论了温度、混合溶剂的组成、星形嵌段共聚物的臂数及组成对微胶束形成的影响。验证了临界接触浓度的存在。并就不同结构的星形嵌段共聚物形成微胶束的形成进行了讨论。Abstract: The micellization behavior of a series of monodisperse Polystyrene-polyisoprene (PS-PI) starblock copolymer with same composition and different arm number, different structure in selective solvent, dioxane / methanol mixture, was studied by means of dynam