【摘 要】
：
Collective motion and relaxation in coarse-grained polymeric liquids is investigated by complementary molecular dynamics (MD) simulations and analytic modeling.
【机 构】
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MaterialsScienceandEngineeringDivision,NIST,Gaithersburg,MD20899
【出 处】
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The 11th International Symposium on Polymer Physics(PP2014)(
论文部分内容阅读
Collective motion and relaxation in coarse-grained polymeric liquids is investigated by complementary molecular dynamics (MD) simulations and analytic modeling.MD simulation indicates that nanoparticle additives,which can effectively modify molecular packing,can cause significant changes in both the strength of the temperature dependence of structural relaxation time τ (as measured by the fragility of glass formation) and the spatial extent of cooperative particle motion in the form of string-like dynamic structures that spontaneously emerge at equilibrium in glass-forming liquids.
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