Reading the mailing list and the wiki as well, I see that GROMACS has little support for implicit solvent. However, I'm interested in simulating charged polymers (small spheres connected with springs) in an aqueos salt solution (more spheres). Assuming no dielectric boundaries -- i.e. a uniform dielectric continuum -- I thought of setting epsilon_r to 80. Clearly the dynamics will be wrong but I'm interested in static properties only. Do you see any pitfalls with this approach?

Best,
  Mikael

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