Window effect in a discretized model for diffusion of a chain in one dimension.
We introduce a model to study the diffusion of chains in microporous solids. The difficulties a chain has to escape from a pore where it is confined is found to strongly depend on the ratio between the chain length and the cage size. This dynamic effect implies a nonstandard behavior of the diffusion coefficient. We found a window effect that can be explained without using any energy argument.
Terranova
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Physics Department, School of Exact and Natural Sciences, University of Mar del Plata, Deán Funes 3350, 7600 Mar del Plata, Argentina.
Aldao
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Mártin
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