Behavior of rodlike polyelectrolytes near an oppositely charged surface | Zendy

René Messina | Zendy

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Behavior of rodlike polyelectrolytes near an oppositely charged surface

Author(s) -

René Messina

Publication year - 2005

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.2140692

Subject(s) - polyelectrolyte , dielectric , chemical physics , planar , materials science , monte carlo method , charge density , adsorption , polyelectrolyte adsorption , electrostatics , charge (physics) , substrate (aquarium) , surface charge , nanotechnology , chemistry , polymer , composite material , physics , computer graphics (images) , statistics , optoelectronics , mathematics , quantum mechanics , oceanography , computer science , geology

The behavior of highly charged short rod-like polyelectrolytes nearoppositely charged planar surfaces is investigated by means of Monte Carlosimulations. A detailed microstructural study, including monomer and fluidcharge distribution, and chain orientation, is provided. The influence of chainlength, substrate's surface-charge-density and image forces is considered. Dueto the lower chain-entropy (compared to flexible chains), our simulation datashow that rod-like polyelectrolytes can, in general, better adsorb thanflexible ones do. Nonetheless, at low substrate-dielectric-constant, it isfound that repulsive image forces tend to significantly reduce thisdiscrepancy.Comment: Updated results - 19 pages - 10 figs - RevTex

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