Computer simulation study of polydispersity effect on the phase behavior of short diblock copolymers
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- 作者：Gui-Sheng Jiao ; Yue Li ; Hu-Jun Qian ; hjqian@jlu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Zhong-Yuan Lu
- 关键词：Short diblock copolymers ; Polydispersity ; Computer simulation
- 刊名：Polymer
- 出版年：2016
- 出版时间：25 July 2016
- 年：2016
- 卷：96
- 期：Complete
- 页码：6-12
- 全文大小：1825 K
文摘
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Phase diagrams for monodisperse, one-sided and two-sided polydisperse short diblock copolymer melts are constructed.
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An unexpected stability of a bicontinuous structure over a wide composition range for polydisperse component between 0.7 < f ≤ 0.8 is found in one-sided polydisperse system.
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For the two-sided polydisperse system, an overall up-shift is found in the order-disorder transition boundary to larger χN values due to the presence of highly asymmetrical block copolymers and the dissolve of short blocks of these molecules into the opposite domain.