| 线性ABC三嵌段共聚物在均聚物C中自组装的自洽平均场模拟 |
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| 引用本文： | 李伟,姜伟.线性ABC三嵌段共聚物在均聚物C中自组装的自洽平均场模拟[J].高等学校化学学报,2010,31(9):1878. |
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| 作者姓名： | 李伟 姜伟 |
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| 作者单位： | 1. 中国科学院长春应用化学研究所高分子化学与物理国家重点实验室, 长春 130022;
2. 中国科学院研究生院, 北京 100049 |
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| 基金项目： | 吉林大学基本科研业务费项目，吉林大学科研启动基金 |
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| 摘 要： | 应用实空间的自洽平均场理论研究了线性ABC三嵌段共聚物在均聚物C中的自组装. 模拟结果表明, 共聚物在均聚物中形成的分散相主要为核壳结构. 通过降低A与C之间的相互作用, 可以使核壳结构的成核嵌段发生从嵌段A向嵌段B的转变, 并且在转变过程中观察到了多种过渡结构, 包括带有凸起表面的盘状结构和柱状结构以及相互缠绕的柱状结构. 另外, 降低嵌段共聚物中A嵌段在共混体系中的含量有利于形成以B为核的核壳结构.
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| 关 键 词： | 三嵌段共聚物 均聚物 自组装 自洽平均场理论 |
| 收稿时间： | 2009-12-07 |
Self-consistent Filed Theory Study on Self-assembly of Linear ABC Triblock Copolymer in Homopolymer C |
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| LI Wei,JIANG Wei.Self-consistent Filed Theory Study on Self-assembly of Linear ABC Triblock Copolymer in Homopolymer C[J].Chemical Research In Chinese Universities,2010,31(9):1878. |
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| Authors: | LI Wei JIANG Wei |
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| Institution: | 1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The self-assembly of linear ABC triblock copolymer in homopolymer C was studied by the real-space self-consistent field theory. The simulative results show that the dispersed phase formed by the triblock copolymer in the homopolymer is mainly the core-shell structure. Decreasing the interaction between species A and C can change the core-forming block from A to B. There are several intermediate morphologies between the two main core-shell structures, including the cylinder with bump surface, the disk with bump surface and the twist cylinders. Moreover, the structure with core-forming block B is favorable at the low content of block A in the mixture. |
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| Keywords: | Triblock copolymer Homopolymer Self-assembly Self-consistent field theory |
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