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Mechanical behavior and wrinkling patterns of phaseseparated binary polymer blend film

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The wrinkling of phase-separated binary polymer blend film was studied through combining the Monte Carlo (MC) simulation for morphologies with the lattice spring model (LSM) for mechanical properties.The information of morphology and structure obtained by use of MC simulation is input to the LSM composed of a three-dimensional network of springs,which allows us to determine the wrinkling and the mechanical properties of polymer blend film,such as strain,stress,and Young's modulus.The simulated results show that the wrinkling of phase-separated binary polymer blend film is related not only to the structure of morphology,but also to the disparity in elastic moduli between polymers of blend.Our simulation results provide fundamental insight into the relationship between morphology,wrinkling,and mechanical properties for phase-separated polymer blend films and can yield guidelines for formulating blends with the desired mechanical behavior.The wrinkling results also reveal that the stretching of the phase-separated film can form the micro-template,which has a wide application prospect.

polymer blend filmphase separationmechanical propertywrinklinglattice spring model

Xuezhe ZHAO、Shengwei DENG、Yongmin HUANG、Honglai LIU、Ying HU

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state Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China

Financial support for this work was provided by the National Natural Science Foundation of ChinaFinancial support for this work was provided by the National Natural Science Foundation of ChinaProgram for Changjiang Scholars and Innovative Research Team in University of China111 Project of China

2097604420736002IRT0721B08021

2011

10.1007/sl1458-011-0248-3

中国化学前沿
高等教育出版社

中国化学前沿

ISSN：1673-3495
年,卷(期)：2011.6(3)
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