Dynamics and Rheology of a Supercooled Polymer Melt
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概要
- 論文の詳細を見る
Molecular dynamics simulations are performed for a polymer melt composed of short chains in quiescent and sheared conditions in supercooled states. In quiescent states, while the self chain motions are excellently described by the Rouse model, the stress relaxation function G(t) exhibits a stretched exponential decay in a relatively early stage and ultimately follows the Rouse function. Transient stress evolution after application of shear obeys the linear growth ∫^t_0dt´G(t´) for strain less than 0.1 and then saturates into a non-Newtonian viscosity. A glassy component of the stress is much enhanced as compared to the entropic component.
- 理論物理学刊行会の論文
- 2000-04-28
著者
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Yamamoto Ryoichi
Department Of Biology Faculty Of Science Osaka City University
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Onuki Akira
Department Of Physics Kyoto University
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Yamamoto Ryoichi
Department Of Physics Kyoto University
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Onuki Akira
Department Of Physics Faculty Of Science University Of Tokyo:department Of Physics Kyushu University
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YAMAMOTO Ryoichi
Department of Physics, Kyoto University
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ONUKI Akira
Research Institute for Fundamental Physics, Kyoto University
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