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Simulation studies of permeation through two-dimensional ideal polymer networks

Yong Wu·B Schmittmann·R K P Zia
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Abstract

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.

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Yong Wu, B Schmittmann, R K P Zia. 2007-03-20. Simulation studies of permeation through two-dimensional ideal polymer networks. https://doi.org/10.1088/1742-5468%2F2007%2F04%2Fp04003

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