首页|Temperature dependence of microscopic properties in diblock copolymer films: A dissipative particle dynamics simulation

Temperature dependence of microscopic properties in diblock copolymer films: A dissipative particle dynamics simulation

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Temperature dependence of microscopic properties in diblock copolymer films has been investigated by dissipative particle dynamics simulations.Results show the relation between mean-square bond length (MSBL) and system temperature can be described as a quadratic curve.The root-mean-square radius of gyration (RMSGR) and end-end distance (RMSED)increase gradually as the temperature rises and composition fraction changes from 0.1 to 0.5,in which the effect of the former is primary.Especially,the relation between RMSGR and temperature is nearly linear in the confinement-introduced direction.Density distribution of each component in the films can be controlled and adjusted effectively by its interaction with other components and boundaries.Moreover,the changes of system temperature and composition fraction can both affect the density distributions to a certain extent.

diblock copolymer filmsmicroscopic propertiesdissipative particle dynamics

XU Yi、FENG Jian、SONG Xiao-yu、WANG Yong、CHEN Jie、ZHU Xian

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School of Environmental and Chemical Engineering,Shanghai University,Shanghai 200444,P.R.China

Department of Chemistry and Life Science,Chuzhou University,Chuzhou 239012,Anhui,P.R.China

School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,P.R.China

Shanghai Leading Academic Discipline ProjectResearch and Development Special Fundation of Excellent Young Teachers of Universities in ShanghaiDevelopmental Foundation of Scientific Technology of Shanghai University

S30109

2010

10.1007/s11741-010-0640-3

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2010.14(4)
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