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The Effect of Surface Interactions on the Viscosity of Polymer Thin Films

Published online by Cambridge University Press:  01 February 2011

Chunhua Li ,
Jun Jiang ,
Miriam J. Rafailovich  and
Jonathan C. Sokolov
Chunhua Li
Affiliation:
chuli@ic.sunysb.edu, State University of New York at Stony Brook, Room 314, Old engineering building, SUNY at Stony Brook, Stony Brook, NY, 11794, United States, 631-216-2507
Jun Jiang
Affiliation:
jjiang@ic.sunysb.edu
Miriam J. Rafailovich
Affiliation:
miriam.rafailovich@sunysb.edu
Jonathan C. Sokolov
Affiliation:
jsokolov@ms.cc.sunysb.edu
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Abstract

Previously, we reported that the viscosity of a polymer film can be measured in situ by observing the liquid-liquid dewetting of polymer bilayer films. In this study, we use the technique to investigate the effect of film thickness and surface interactions on the effective viscosity of polymer thin films. We found that the effective viscosity increases dramatically with decreasing the film thickness. We attribute this to the pinning of the polymer chains at the strongly interacting polymer/Silicon interface.

Keywords

polymercoatingfilm
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 890: Symposium Y – Surface Engineering for Manufacturing Applications , 2005 , 0890-Y06-03
Copyright
Copyright © Materials Research Society 2006

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References

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