Grafted polyelectrolyte in strong electric field under load: Field-regulated force and chain contraction

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Abstract

The response of grafted polyelectrolytes to electrostatic field that favors adsorption is studied theoretically and by means of molecular dynamics (MD). Applying to the free chain end a constant force which counteracts adsorption, we analyze the size of the desorbed part as a function of force and electric field. Simulations with different loads, corresponding to linear, nonlinear and Hertzian springs, applied to the free end have been also performed to explore the generation of mechanical force by electric field. The MD results are in good agreement with the predictions of theory.

Original languageEnglish
Article number28006
JournalEurophysics Letters
Volume97
Issue number2
DOIs
Publication statusPublished - Jan 2012
Externally publishedYes

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