Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (19): 2341-2346. Previous Articles    

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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


  1. (1中国科学院长春应用化学研究所高分子物理与化学国家重点实验室 长春 130022)
    (2中国科学院研究生院 北京 100049)
    (3吉林农业大学信息技术学院 长春 130118)
  • 投稿日期:2010-12-14 修回日期:2011-04-29 发布日期:2011-05-20
  • 通讯作者: 姜伟
  • 基金资助:


Monte Carlo Simulation of the Self-assembly of Amphiphilic Triblock Copolymer in Binary Block-Selective Solvents

Fan Juanjuan1,2,3 Han Yuanyuan1 Jiang Wei*,1   

  1. (1 State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022)
    (2 Graduate University of the Chinese Academy of Sciences, Beijing 100049)
    (3 College of Information Technology, Jilin Agricultural University, Changchun 130118)
  • Received:2010-12-14 Revised:2011-04-29 Published:2011-05-20

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 formed by ABA amphiphilic triblock copolymers changed from vesicle to lamella, ring, rod, and then to spheres by changing the proportion of binary solvent mixtures. The results revealed that changing the proportion of binary solvent mixtures and adjusting core-solvent interaction of single solvent had an equivalent effect on the self-assembled structure for the ABA amphiphilic triblock copolymers. Moreover, the dynamical pathways leading to ring and vesicle are analyzed in detail. It was found that the oblate membranes closed up to form vesicles, while the oblate membranes dissolved a hole to form ring.

Key words: binary block-selective solvents, amphiphilic triblock copolymer, self-assembly, Monte Carlo simulation

CLC Number: