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题名: Adsorption of externally stretched two-dimensional flexible and semiflexible polymers near an attractive wall
作者: Lam, Pui-Man ;  Zhen, Yi ;  Zhou, Haijun ;  Zhou, Jie
刊名: PHYSICAL REVIEW E
出版日期: 2009
卷号: 79, 期号:6, 页码:-
关键词: MONTE-CARLO-SIMULATION ;  DYNAMIC PROPERTIES ;  INTERFACE ;  SURFACES ;  CHAINS ;  TRANSITION ;  MOLECULES ;  FORCE
学科分类: Physics
通讯作者: Lam, PM , Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA
部门归属: [Lam, PM; Zhen, Y] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA; [Zhou, HJ; Zhou, J] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We study analytically a model of a two-dimensional partially directed flexible or semiflexible polymer, attached to an attractive wall which is perpendicular to the preferred direction. In addition, the polymer is stretched by an externally applied force. We find that the wall has a dramatic effect on the polymer. For wall attraction epsilon(1) smaller than the nonsequential nearest-neighbor attraction epsilon the fraction of monomers at the wall is zero and the model is the same as that of a polymer without a wall. However, for epsilon(1) greater than epsilon the fraction of monomers at the wall undergoes a first-order transition from unity at low temperature and small force, to zero at higher temperatures and forces. We present phase diagram for this transition. Our results are confirmed by Monte Carlo simulations.
资助者: LEQSF[(2007-10)-RD-A29]; China 973-Project[2007CB935903]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000267698700041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5307
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Lam, Pui-Man,Zhen, Yi,Zhou, Haijun,et al. Adsorption of externally stretched two-dimensional flexible and semiflexible polymers near an attractive wall[J]. PHYSICAL REVIEW E,2009,79(6):-.
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