Dissipative particle dynamics simulation of microphase separation behaviors in graft-diblock copolymer films

被引：0
|
作者：
Yi Xu
Jian Feng
Jie Chen
Minghui Xiang
Xinwang Song
Yangwen Zhu
机构：
[1] Shanghai University,School of Environmental and Chemical Engineering
[2] Chuzhou University,Department of Chemistry and Life Science
[3] SINOPEC,Geological Scientific Research Institute, Shengli Oilfield
来源：
Polymer Science Series A | 2013年 / 55卷
关键词：
Polymer Science Series; Diblock Copolymer; Microphase Separation; Body Centered Cubic; Dissipative Particle Dynamic Simulation;
D O I：
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学科分类号：
摘要：
Dependence of the microphase separation behaviors of graft-diblock copolymers (Ax)g(By) in thin films on composition fraction, thickness of film and A–B repulsing strength is investigated preliminarily by dissipative particle dynamics. Several kinds of ordered mesostructures have been observed and the simulated phase diagrams show evident asymmetries, besides, the center of lamellas region shifts away from fA = 0.5. Some of the mesostructures in the film can correspond to those in bulk. Decreasing the thickness of film as well as strengthening the A–B repulsion help the mesostructures enhance the degree of order.
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页码：198 / 203
页数：5
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