Solid like friction of a polymer chain

Details Solid like friction of a polymer chain Solid like friction of a polymer chain

2000-05-25

arxiv.org/abs/cond-mat/0005433v3

Physics

Condensed Matter

Soft Condensed Matter

16 pages, 4 eps figures, accepted for publuication in Eur. Phys. J. E New version of 20/07/2000 minor modifications to figures

Scientific paper

10.1007/s101890070007

We propose a simple friction model for isolated polymer chains on a solid substrate. The chains are pulled at constant velocity by one end, the other end can be trapped on the solid substrate on localised sites. We focus on the energy dissipation due to the traps. This simple model leads to non trivial friction laws, depending on the velocity and the distance between traps. Some refinements of the model such as the effect of thermal fluctuation are also reported.

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