Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2005-05-24
Physics
Condensed Matter
Soft Condensed Matter
Submitted for publication
Scientific paper
The study of the dewetting of very thin polymer films has recently revealed many unexpected features (e.g. unusual rim morphologies and front velocities) which have been the focus of several theoretical models. Surprisingly, the most striking feature of all, that is a decrease of the rim width with time, have not yet been explained. In the present letter, we show how the combined effects of a non-linear friction between the film and the substrate, and the presence of residual stresses within the film, result in the presence of a maximum in the time evolution of the rim width. In addition, we show how the introduction of a non-linear friction can also simply explain the rapid decrease of the dewetting velocity with time observed experimentally.
Damman Pascal
Gabriele Sylvain
Hamieh Moustafa
Raphael Elie
Reiter Gunter
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