Viscoelastic thin polymer films under transient residual stresses: two-stage dewetting on soft substrates |
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| Authors: | Al Akhrass S Reiter G Hou S Y Yang M H Chang Y L Chang F C Wang C F Yang A C-M |
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| Institution: | Institute de Chimie des Surfaces et Interfaces, UHA-CNRS, 15, rue J. Starcky, 68057 Mulhouse Cedex, France. |
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| Abstract: | A nonmonotonic, two-stage dewetting behavior was observed for spin coated thin viscoelastic polymer films on soft elastic substrates. At times shorter than the relaxation time of the polymer (ttau_{rep}), dewetting accelerated, accompanied by an unstable rim. However, holes nucleated at t
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