【摘 要】
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Temperature dependence of microscopic properties in diblock copolymer films has been investigated by dissipative particle dynamics simulations.Results show the
【机 构】
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School of Environmental and Chemical Engineering,Department of Chemistry and Life Science,School of
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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.
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