Published July 6, 1992
| public
Journal Article
Curvature instability of diblock copolymer bilayers
- Creators
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Wang, Zhen-Gang
Chicago
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Abstract
The curvature expansion of the free energy for diblock copolymers aggregated into bilayers is studied for strongly incompatible diblocks. It is shown that sufficient asymmetry in the di block composition leads to an instability of the flat bilayer with respect to spherical or saddle-splay deformations: when the bilayer consists of two (diblock copolymer) monolayers each having a strong tendency to curve convexly toward the solvent, i.e., when the outer block is much larger than the inner block, spherical vesicles become favored by the curvature elastic free energy over flat bilayers. In the opposite case, saddle-splay deformations are favored.
Additional Information
© 1992 American Chemical Society. Received November 14, 1991; Revised Manuscript Received April 6, 1992. I thank S. A. Safran for helpful discussions and a critical reading of the manuscript. Financial support from the National Science Foundation (Grant CHE88-16059) through Professor W. M. Gelbart at the University of California, Los Angeles, CA, where part of this work was conducted, and from The Camille and Henry Dreyfus New Faculty Awards Program is gratefully acknowledged.Additional details
- Eprint ID
- 85287
- Resolver ID
- CaltechAUTHORS:20180313-152006067
- NSF
- CHE88-16059
- Camille and Henry Dreyfus Foundation
- Created
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2018-03-13Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field