Communication: Lateral phase separation of mixed polymer brushes physisorbed on planar substrates
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Alexander-Katz_Communication Lateral phase.pdf
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Author(s)
Van Lehn, Reid C.
Alexander-Katz, Alfredo
Date Issued
October 2011
Journal
Journal of Chemical Physics
Publisher
American Institute of Physics
Citation
Van Lehn, Reid C., and Alfredo Alexander-Katz. Communication: Lateral Phase Separation of Mixed Polymer Brushes Physisorbed on Planar Substrates. The Journal of Chemical Physics 135, no. 14 (2011): 141106. © 2011 American Institute of Physics.
Version
Final published version
Abstract
Here, we present a new method to model lateral phase separation in mixed polymer brushes physisorbed to a planar surface with mobile grafting points. The model is based on a local mean field theory that combines a Flory-Huggins approximation for interaction enthalpies with an Alexander-de Gennes brush entropy contribution. Using Monte Carlo sampling, the application of these two interactions to a lattice model yields a range of phase behavior consistent with previous theoretical and experimental work. This model will be useful for predicting mixed polymer brush morphologies on planar surfaces and in principle can be extended to other geometries (e.g., spheres) and polymer systems.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1063/1.3653937
