Simulation studies of permeation through two-dimensional ideal polymer networks

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We study the diffusion process through an ideal polymer network, using numerical methods. Polymers are modeled by random walks on the bonds of a two-dimensional square lattice. Molecules occupy the lattice cells and may jump to the nearest-neighbor cells, with probability determined by the occupation of the bond separating the two cells. Subjected to a concentration gradient across the system, a constant average current flows in the steady state. Its behavior appears to be a non-trivial function of polymer length, mass density and temperature, for which we offer qualitative explanations.
8 pages, 4 figures

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/126969

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0703039
 http://arxiv.org/abs/cond-mat/0703039
 J. Stat. Mech. (2007) P04003
 doi:10.1088/1742-5468/2007/04/P04003

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arXiv