I have a bead-spring model of a polymer melt and I would like to simulate what happens when a solvent is added to the system.
The most direct way to do this would be to add solvent particles into the system. But my simulations already take enough time so I would like to avoid this approach.
I think the best approach would be to change the interaction energies of the system. However, I'm not sure how I should change the interaction parameters to correctly represent the presence of a solvent.
Is this the correct approach? How can I determine appropriate parameters to mimic my solvent?
My system uses a 6-12 LJ potential and a FENE bonding potential.