Self-assembly of ABC star triblock copolymers under a cylindrical confinement.
Self-assembly of ABC star triblock copolymers under a cylindrical confinement.
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DOI：
10.1021/jp9043896
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发表时间：
2009-08
期刊：
影响因子：
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通讯作者：
Yuci Xu;Weihua Li;F. Qiu;Yuliang Yang;A. Shi
中科院分区：
文献类型：
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作者：
Yuci Xu;Weihua Li;F. Qiu;Yuliang Yang;A. Shi
利用实空间自洽平均场理论研究了限制在圆柱形纳米孔中的 ABC 星形三嵌段共聚物的自组装。具体来说，研究重点是三嵌段共聚物的受限自组装，该共聚物在本体中形成分层片层。一般而言，分级片层可以平行或垂直于孔表面。 A和B/C片层的同心环在平行情况下形成。 B/C层进一步形成B/C域。 B/C域的数量由孔径控制。在垂直情况下，B/C层沿孔轴交替排列。分析了这些观察到的结构的稳定性。
Self-assembly of ABC star triblock copolymers confined in cylindrical nanopores is studied using real-space self-consistent mean-field theory. Specifically, the investigation focuses on the confined self-assembly of a triblock copolymer which forms hierarchical lamellae in the bulk. Generically, the hierarchical lamellae can be parallel or perpendicular to the pore surfaces. Concentric rings of A and B/C lamellae are formed in the parallel case. The B/C layers further form B/C domains. The number of B/C domains is controlled by the pore size. In the perpendicular case, the B/C layers are arranged alternatively along the pore axis. The stability of these observed structures is analyzed.