Behavior of rod-like polyelectrolytes near an oppositely charged surface

Rene Messina

doi:10.1063/1.2140692

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arXiv · cond-mat/0508072

Behavior of rod-like polyelectrolytes near an oppositely charged surface

Rene Messina

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Abstract

The behavior of highly charged short rod-like polyelectrolytes near oppositely charged planar surfaces is investigated by means of Monte Carlo simulations. A detailed microstructural study, including monomer and fluid charge distribution, and chain orientation, is provided. The influence of chain length, substrate's surface-charge-density and image forces is considered. Due to the lower chain-entropy (compared to flexible chains), our simulation data show that rod-like polyelectrolytes can, in general, better adsorb than flexible ones do. Nonetheless, at low substrate-dielectric-constant, it is found that repulsive image forces tend to significantly reduce this discrepancy.

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Rene Messina. 2005-10-19. Behavior of rod-like polyelectrolytes near an oppositely charged surface. https://doi.org/10.1063/1.2140692

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