Anomalous behavior of a polymer chain in supercritical solvents: A remarkable expansion of solvophobic polymer

被引：9
|
作者：
Sumi, T [1 ]
Sekino, H [1 ]
机构：
[1] Toyohashi Univ Technol, Dept Knowledge Based Informat Engn, Toyohashi, Aichi 4418580, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2005年 / 407卷 / 4-6期
关键词：
D O I：
10.1016/j.cplett.2005.03.094
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Conformational change of a solvophobic polymer along an isotherm slightly above critical temperature of solvent is studied by using a simulation with an effective Hamiltonian of the solvated polymer chain, where solvent effects are taken into account. We observe an expansion of the solvophobic polymer in the vicinity of the critical density. The anomalous behavior can be understood only through the large fluctuation of solvent density near the critical point. (c) 2005 Elsevier B.V. All rights reserved.
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页码：322 / 326
页数：5
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