Polyelectrolyte adsorption on charged substrate

Chi Ho Cheng, Pik Yin Lai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The behavior of a polyelectrolyte adsorbed on a charged substrate of high-dielectric constant is studied by both Monte-Carlo simulation and analytical methods. It is found that in a low enough ionic strength medium, the adsorption transition is first-order where the substrate surface charge still keeps repulsive. The monomer density at the adsorbed surface is identified as the order parameter. It follows a linear relation with substrate surface charge density because of the electrostatic boundary condition at the charged surface. During the transition, the adsorption layer thickness remains finite. A new scaling law for the layer thickness is derived and verified by simulation.

Original languageEnglish
Title of host publicationSlow Dynamics in Complex Systems
Subtitle of host publication3rd International Symposium on Slow Dynamics in Complex Systems
EditorsMichio Tokuyama, Irwin Oppenheim
PublisherAmerican Institute of Physics Inc.
Number of pages4
ISBN (Electronic)0735401837
StatePublished - 30 Apr 2004
Event3rd International Symposium on Slow Dynamics in Complex Systems - Sendai, Japan
Duration: 3 Nov 20038 Nov 2003

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference3rd International Symposium on Slow Dynamics in Complex Systems


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