منابع مشابه
Molecular dynamics simulations of polyelectrolyte multilayering on a charged particle.
Molecular dynamics simulations of polyelectrolyte multilayering on a charged spherical particle revealed that the sequential adsorption of oppositely charged flexible polyelectrolytes proceeds with surface charge reversal and highlighted electrostatic interactions as the major driving force of layer deposition. Far from being completely immobilized, multilayers feature a constant surge of chain...
متن کاملPolyelectrolyte molecule conformation near a charged surface
-The scaling theory of conformation of a weakly charged polyelectrolyte molecule attached onto a charged surface is developed. It is shown that the long-range interaction between charged monomer units and similary (or oppositely) charged surface provides
متن کاملOn the charge overcompensation of quenched polyelectrolyte stars electrostatically adsorbed onto a quenched oppositely charged planar surface
We present numerical self-consistent field calculations in a two-gradient cylindrical coordinate system for a ~translationally restricted! quenched polyelectrolyte star which is electrostatically attracted to an oppositely charged surface with homogeneous surface charge density at a given ionic strength of a 1:1 electrolyte. The results prove that without any additional driving force for adsorp...
متن کاملSimulations of Polyelectrolyte Adsorption to a Dielectric Like-Charged Surface.
We explore, using the recently developed efficient Monte Carlo simulation method, the interaction of an anionic polyelectrolyte solution with a like-charged dielectric surface. In addition to polyions, the solution also contains salt with either monovalent, divalent, or trivalent counterions. In agreement with recent experimental observations, we find that multivalent counterions can lead to st...
متن کاملPolyelectrolyte Adsorption on Charged Substrate
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. ...
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ژورنال
عنوان ژورنال: Macromolecules
سال: 2003
ISSN: 0024-9297,1520-5835
DOI: 10.1021/ma034689e