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A2: Dynamically consistent coarse-grained models

This project is concerned with the development of dynamically consistent coarse-grained models for soft matter systems, including molecular liquids, polymer-solvent mixtures and polymer blends. We apply statistical mechanics methods to derive dissipative particle dynamics friction functions for coarse-grained bead collisions, the amplitudes and spatial variations of which will be related to the dynamic speed up observed in coarse-grained molecular dynamics simulations. The ultimate goal is to arrive at a consistent, coarse-grained modelling of dynamics under equilibrium and non-equilibrium conditions.


Conditional Reversible Work Coarse-Grained Models of Molecular Liquids with Coulomb Electrostatics – A Proof of Concept Study on Weakly Polar Organic Molecules
Gregor Deichmann, Nico F. A. van der Vegt
Journal of Chemical Theory and Computation 13 (12), 6158-6166 (2017);
doi:10.1021/acs.jctc.7b00611

Evaluation of mapping schemes for systematic coarse graining of higher alkanes
Marco Dallavalle, Nico F. A. van der Vegt
Physical Chemistry Chemical Physics 19 (34), 23034-23042 (2017);
doi:10.1039/c7cp03926c

Study of Hydrophobic Clustering in Partially Sulfonated Polystyrene Solutions with a Systematic Coarse-Grained Model
Ran Zhang, Nico F. A. van der Vegt
Macromolecules 49 (19), 7571-7580 (2016);
doi:10.1021/acs.macromol.6b01132

Solid-liquid work of adhesion of coarse-grained models of n-hexane on graphene layers derived from the conditional reversible work method
Vikram Reddy Ardham, Gregor Deichmann, Nico F. A. van der Vegt, Frédéric Leroy
The Journal of Chemical Physics 143 (24), 243135 (2015);
doi:10.1063/1.4936253

Bottom-up derivation of conservative and dissipative interactions for coarse-grained molecular liquids with the conditional reversible work method
Gregor Deichmann, Valentina Marcon, Nico F. A. van der Vegt
The Journal of Chemical Physics 141 (22), 224109 (2014);
doi:10.1063/1.4903454

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