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Title: Adsorption Transition of a Polyelectrolyte on a High-Dielectric Charged Substrate
Authors: Cheng, Chi-Ho;Lai, Pik-Yin
Contributors: 物理學系
Date: 2004
Issue Date: 2013-05-28T07:11:44Z
Publisher: The American Physical Society
Abstract: The behavior of a polyelectrolyte adsorbed on a charged surface of high-dielectric constant is studied by both Monte Carlo simulation and analytical methods. It is found that in a low ionic strength medium, the transition is first-order with the repulsive charged surface. The surface monomer density, which is the order parameter of the adsorption transition, follows a linear relation with surface charge density. It indicates that the polyelectrolyte is compressed on the substrate without any conformational change before the desorption. Finally, a different scaling law for the layer thickness is derived and verified by simulation.
Relation: Physical Review E, 70(6): 061805
Appears in Collections:[物理學系] 期刊論文

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