软受限导致的AB两嵌段共聚物聚集体形貌
Soft Confinement-Induced Morphologies of AB Diblock Copolymers
DOI: 10.12677/JAPC.2018.72014, PDF,    科研立项经费支持
作者: 高小寒*, 黄星澎：新疆大学物理科学与技术学院，新疆 乌鲁木齐
关键词: 嵌段共聚物；自组装；软受限；Copolymer； Self-Assembly； Soft Confinement
摘要: 本文采用基于Monte Carlo Method的模拟退火方法研究AB两嵌段共聚物在软受限条件下的自组装行为。模拟预测了大量共聚物聚集体的形貌，如核-壳-补丁结构、核-补丁结构、类三明治结构、轴向叠摞层结构、螺旋结构等。这些结构可以嵌段体积分数为依据组成序列。嵌段与不良溶剂间的相互作用和两嵌段间不容性的比值可模拟软受限壁的柔性。软受限壁柔性通过最小化各界面能既可影响共聚物聚集体的整体形状又能作用于其内部结构。希望所得规律有助于更全面更进一步理解嵌段共聚物在软受限条件下的自组装行为。
Abstract: The self-assembly of AB diblock copolymers in soft a confinement is studied using a simulated annealing method. Simulations predicted a variety of morphologies such as core-shell-patchy structure, core-patchy structure, sandwich like structure, axially stacked lamellae ellipsoid, helix structure and so on. The morphologies arranged in sequence as a function of the volume fraction of block. The softness ensured by the ration of solvent-polymer interaction to incompatibility between blocks can affect both the overall shape and internal structure of copolymer aggregate via minimization of interfacial energy. These results may be useful to comprehensive understanding of the self-assembly of copolymers under soft confinement.
文章引用：高小寒, 黄星澎. 软受限导致的AB两嵌段共聚物聚集体形貌[J]. 物理化学进展, 2018, 7(2): 111-119. https://doi.org/10.12677/JAPC.2018.72014

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