Polymer chains in porous media

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Abstract
Static and dynamical properties of polymer molecules with and without excluded volume in porous media are investigated by Monte Carlo simulations. The exponents characterising the shape of the polymer approach their asymptotic values extremely slowly. The dynamical information indicates that the chain is trapped in local free-energy minima for random times, tD, which have a very broad distribution. These properties are compared with those found in regular networks formed by various periodic distributions of obstacles.

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