writer：崔杰; 张晓旭; 韩媛媛; 姜伟
keywords：多分散性, 两亲性两嵌段共聚物, 自组装, Monte Carlo模拟, 选择性溶剂, 囊泡
source：期刊
specific source：高分子学报, 2011, 011(4), 421-426
Issue time：2011年

采用Monte Carlo模拟方法研究了多分散性AB两亲性两嵌段共聚物在选择性溶剂中的自组装行为。模拟结果表明，嵌段共聚物的多分散性对体系在选择性溶剂中自组装所形成的胶束形貌结构有很大影响。当AB两嵌段共聚物的多分散系数由1.0增加至1.4时，体系中自组装所形成的胶束将会发生由囊泡到片层直至球状的一系列形态转变。通过统计分析和动力学过程研究发现，这一系列形态转变是由于多分散体系中链长较短的高分子链数目的增加而导致的。

Monte Carlo simulation was used to study the effect of polydispersity on the self-assembly of amphiphilic AB diblock copolymers in selective solvents. The simulation results showed that the polydispersity of block copolymers has a significant effect on the micellar morphology formed by self-assembly in selective solvents. When the polydispersity index of AB diblock copolymer increased from 1.0 to 1.4, the self-assembled micelles underwent a series of morphological transitions from vesicles to lamellae and to spheres.

论文链接：https://doi.org/10.3724/sp.j.1105.2011.10246