Bottom-up and Top-down Coarse-Grained model for poly-ethylene-oxide polymers

We have developed a temperature T-dependent coarse-grained Hamiltonian of polyethylene glycol/oxide (PEG/PEO) in aqueous solution, which may be used in implicit-solvent material models in a wide temperature (i.e., solvent quality) range.

Our approach combined bottom-up approach, i.e., large scale atomistic MD simulations, and top-down closure, when explicitly targeting macroscopic experimental properties, such as scaling of polymer chain length and osmotic pressure equation of state.

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