AB双亲两嵌段共聚物在选择性溶剂中的诱导自组装行为  

The Directed Self-Assembly of Amphiphilic AB Diblock Copolymer in the Selective Solvents

作　　者：孔维新[1] 陈楚[1] 

机构地区：[1]新疆大学物理科学与技术学院,新疆乌鲁木齐830046

出　　处：《新疆大学学报（自然科学版）》2018年第1期47-50,共4页Journal of Xinjiang University(Natural Science Edition)

基　　金：新疆维吾尔自治区自然科学基金面上项目(2016D01C057)

摘　　要：本文采用基于蒙特卡罗的模拟退火方法研究了诱导界面对称性破缺对AB双亲性两嵌段共聚物在选择性溶剂中自组装行为的影响.模拟结果表明具有高对称性的诱导界面面积与附着其上的嵌段共聚物数量之比会决定胶束形貌.随着比值增大,原柱状胶束首先转变为带尾巴片状胶束接着变为片状胶束.具有低对称性的线形诱导界面虽然无法显著改变柱状胶束形貌,但是能引导柱状胶束在空间与其共线排列.希望这些规律有助于实验研究.The directed self-assembly of amphiphilic AB diblock copolymers in selective solvents is studied via the simulated annealing method. Simulation results demonstrate that the cylindrical micelle transforms into sheet with a tail like micelle then into sheet like micelle with the increase of the number of diblock copolymers adsorbed on the directed interface with high symmetry. Linear directed interface is unable to alter micellar morphology obviously but affects the orientation of cylindrical micelle. The rules may be useful for the study in experiment.

关 键 词：嵌段共聚物 诱导物 自组装 胶束形貌 

分 类 号：O469[理学—凝聚态物理]