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Diffusion Limited Wetting

Published online by Cambridge University Press:  10 February 2011

U. Steiner  and
J. Klein
U. Steiner
Affiliation:
Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel Fakultät für Physik, Universität Konstanz, Postfach 5560, 78464 Konstanz, Germany
J. Klein
Affiliation:
Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
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Abstract

We have measured the growth with time t of a wetting layer (of thickness l(t)) at the surface of a thin film of a binary liquid (polymer) mixture. Over a wide range of experimental parameters, our data is well described by a model of diffusion limited wetting which takes into account the finite film thickness. In this model, l(t) is a function of time which sensitively depends on the nature of the interfacial potential: a detailed comparison shows that long range van-der-Waals forces provide the main driving force for the build-up of the wetting layer.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 464: Symposium FF – Dynamics in Small Confining Systems III , 1996 , 121
Copyright
Copyright © Materials Research Society 1997

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