writer:樊娟娟; 韩媛媛; 姜伟
keywords:双选择性溶剂, 两亲性嵌段共聚物, 自组装, Monte Carlo模拟, ABA三嵌段共聚物, 囊泡
source:期刊
specific source:化学学报, 2011, 69(19), 2341-2346
Issue time:2011年
采用Monte Carlo模拟方法研究了ABA两亲性三嵌段共聚物在两种选择性溶剂中的自组装行为。模拟结果表明,在保证溶剂总浓度一定的情况下,改变两种选择性溶剂的体积比对于ABA两亲性嵌段共聚物自组装所形成的胶束形貌结构有很大影响。随着双选择性溶剂体积比的改变,体系中胶束形貌结构将会发生由囊泡到层状,再到环状、棒状直至球状的一系列转变。通过与单一选择性溶剂中的自组装行为比较发现,改变双选择性溶剂的体积比对于体系胶束形貌结构的影响与在单一选择性溶剂中改变疏水作用具有等同效果。
The effect of binary block-selective solvents on the self-assembly of ABA amphiphilic triblock copolymer in dilute solution was studied by means of Monte Carlo study. The simulative results showed that the proportion of the binary block-selective solvents is one of the key factors that determines the morphologies of the copolymer aggregates. The morphologies changed from vesicle to lamella, ring, rod, and then to spheres by changing the proportion of binary solvent mixtures.
论文链接:ABA两亲性嵌段共聚物在双选择性溶剂中自组装行为的Monte Carlo模拟 - 中国知网