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The Effect of Short and Long Range Interactions on Break up and Dewetting of Thin Polymer Films

Published online by Cambridge University Press:  25 February 2011

Gtonter Reiter*
Affiliation:
Max-Planck Institute for Polymer Research, POB 3148, 6500 Mainz, Germany
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Abstract

We report investigations of instabilities of thin polystyrene films (< 100 nm). In the liquid state films break up by creating cylindrical holes. The average distance between holes is approx. proportional to the film thickness squared. This dependence compares well with the prediction of a recent theory on spinodal decomposition of thin liquid films. The subsequent dewetting process (=growth of holes) depends strongly on the composition of the substrate surface whereas the break up does not seem to be influenced by this surface. The importance of long and short range interactions in this context is discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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