Can polymer coils be modeled as “soft colloids”?

  • Louis A
  • Bolhuis P
  • Hansen J
 et al. 
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Abstract

We map dilute or semi-dilute solutions of non-intersecting polymer chains onto a fluid of ``soft'' particles interacting via a concentration dependent effective pair potential, by inverting the pair distribution function of the centers of mass of the initial polymer chains. A similar inversion is used to derive an effective wall-polymer potential; these potentials are combined to successfully reproduce the calculated exact depletion interaction induced by non-intersecting polymers between two walls. The mapping opens up the possibility of large-scale simulations of polymer solutions in complex geometries.

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Authors

  • A. A. Louis

  • P. G. Bolhuis

  • J. P. Hansen

  • E. J. Meijer

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