Shear deformation of low-density polymer brushes in a good solvent
Computational Physics
2018-09-25 v2
Abstract
Self-consistent field approach is used to model a single end-tethered polymer chain on a substrate subject to various forces in three dimensions. Starting from a continuous Gaussian chain model, the following perturbations are considered: (i) hydrodynamic interaction with an externally imposed shear flow for which a new theoretical framework is formulated; (ii) excluded volume effect in a good solvent, treated in a mean field approximation; (iii) monomer-substrate repulsion. While the chain stretches along the flow, the change of the density profile perpendicular to the substrate is negligible for any reasonable simulation parameters. This null effect is in agreement with multiple neutron scattering studies.
Keywords
Cite
@article{arxiv.1805.08497,
title = {Shear deformation of low-density polymer brushes in a good solvent},
author = {Airidas Korolkovas and Philipp Gutfreund and Alexis Chennevière and John F. Ankner and Franz A. Adlmann and Max Wolff and Jean-Louis Barrat},
journal= {arXiv preprint arXiv:1805.08497},
year = {2018}
}