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Free Energy of Distorted Polymer Films in Highly Confined Three-Dimensional Systems

Cited 4 time in Web of Science Cited 4 time in Scopus
Authors
Suh, K. Y.; Lee, Hong H.
Issue Date
2001-07-27
Publisher
American Chemical Society
Citation
Macromolecules, 2001, 34, 6456
Keywords
INSTABILITIESDEFORMATIONFORCESLAYERS
Abstract
We present a calculation of the free energy for an isotropic polymer film deformed according to a sinusoidal perturbation. Our calculation is for two cases. One is for polymer film/substrate structure that requires a simple extension of the earlier two-dimensional case of Fredrickson et al. As expected, the calculation shows that the wave vectors in x and y directions are reduced to one simple wave vector, q = (q(x)(2) + q(y)(2))(1/2). The other is for polymer film/substrate/poly(dimetliylsiloxane) (PDMS) wall structure, which is the geometry of our recent experiment. For this laterally confined system, the free energy is dominated by two wave vectors, q and q(1) where q(1) is given by q(1) = (q(2) + 2/L-2)(1/2) and L is the half channel width. The limiting cases of long and short wavelength regimes of the latter structure are also studied.
ISSN
0024-9297 (print)
1520-5835 (online)
Language
English
URI
http://hdl.handle.net/10371/6143
DOI
https://doi.org/10.1021/ma0019196
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Journal Papers (저널논문_기계항공공학부)
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