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Size asymmetry in diblock copolymers of cylindrical morphology in thin films

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Authors
Suh, K. Y.; Lee, Hong H.
Issue Date
2001-10-01
Publisher
John Wiley & Sons
Citation
J Poly Sci Part B: Poly, Phys 2001, 39, 2217
Keywords
diblock copolymersSURFACESPOLYMERSMorphology
Abstract
We calculate the free energy of an AB diblock copolymer thin film of cylindrical morphology under confined geometry and find that the size of the cylinder can be asymmetric, depending on the film thickness and surface tension. The size of the cylinder right above the surface is slightly smaller than that of the other cylinders. The equilibrium period in this thin film is different from that in the bulk because of the surface effect. The tendency toward asymmetry diminishes as the film thickness increases and the interfacial tension between the major block (A) and the substrate decreases.
ISSN
0887-6266
Language
English
URI
http://hdl.handle.net/10371/6271
DOI
https://doi.org/10.1002/polb.1195
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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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