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Architectural effect on the surface tension of an ABA triblock copolymer melt

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Matsen, M. W. (2010) Architectural effect on the surface tension of an ABA triblock copolymer melt. Macromolecules, 43 (3). pp. 1671-1674. ISSN 0024-9297 doi: 10.1021/ma902173w

Abstract/Summary

The excess surface energy of lamellae formed by an ABA triblock copolymer melt oriented parallel to a neutral surface is evaluated using self-consistent field theory (SCFT). Consistent with experiments and previous SCFT calculations, we find a preference for the A-rich domains at the surface, which can only be attributed to the architectural asymmetry between the A and B blocks. The behavior was previously attributed to a loss of bridging configurations that occurs when the B-domain resides at the surface. Here we demonstrate that it is actually the presence of chain ends that reduces the excess surface energy of an A-rich domain relative that of a B-rich domain.

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Item Type Article
URI https://reading-clone.eprints-hosting.org/id/eprint/7365
Item Type Article
Refereed Yes
Divisions Science > School of Mathematical, Physical and Computational Sciences > Department of Mathematics and Statistics
Publisher American Chemical Society
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