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Slipping Transition at a Polymer/Solid Interface

Published online by Cambridge University Press:  15 February 2011

K. Migler ,
H. Hervet  and
L. Leger
K. Migler
Affiliation:
Exxon Research and Engineering Company, Clinton Township, Route 22 East, Annandale, N.J. 08801, U.S.A..
H. Hervet
Affiliation:
Collège de France, Laboratoire de Physique de la Matètre Condensée, 11 place Marcelin-Berthelot, 75231 Paris Cedex 05, France.
L. Leger
Affiliation:
Collège de France, Laboratoire de Physique de la Matètre Condensée, 11 place Marcelin-Berthelot, 75231 Paris Cedex 05, France.
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Abstract

Direct measurements of slippage of a polymer melt within 100 nm of a solid surface, under simple shear, are reported. In the case of a high molecular weight polydimethylsiloxane (PDMS) interacting weakly with the solid surface, a sharp transition between weak and strong slippage is observed as a function of shear stress. For strong polymer-surface interactions, slippage is highly reduced, and no transition is observed. The results are compared to a theoretical model recently proposed by Brochard and de Gennes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 290: Symposium N – Dynamics in Small Confining Systems , 1992 , 13
Copyright
Copyright © Materials Research Society 1993

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