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  Competition brings out the best: Modelling the frustration between curvature energy and chain stretching energy of lyotropic liquid crystals in bicontinuous cubic phases

Chen, H., & Jin, C. (2017). Competition brings out the best: Modelling the frustration between curvature energy and chain stretching energy of lyotropic liquid crystals in bicontinuous cubic phases. Interface Focus, 7(4): 20160114. doi:10.1098/rsfs.2016.0114.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-9E57-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-73F7-7
Genre: Journal Article

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 Creators:
Chen, H., Author
Jin, Chenyu1, Author              
Affiliations:
1Group Active soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063307              

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Free keywords: amphiphilic systems; lyotropic liquid crystals; bicontinuous cubic phases; triply periodic minimal surfaces; Surface Evolver; geometrical frustration
 Abstract: It is commonly considered that the frustration between the curvature energy and the chain stretching energy plays an important role in the formation of lyotropic liquid crystals in bicontinuous cubic phases. Theoretic and numeric calculations were performed for two extreme cases: parallel surfaces eliminate the variance of the chain length; constant mean curvature surfaces eliminate the variance of the mean curvature. We have implemented a model with Brakke's Surface Evolver which allows a competition between the two variances. The result shows a compromise of the two limiting geometries. With data from real systems, we are able to recover the gyroid-diamond-primitive phase sequence which was observed in experiments.

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Language(s): eng - English
 Dates: 2017-06-162017-08-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1098/rsfs.2016.0114
 Degree: -

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Title: Interface Focus
Source Genre: Journal
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Publ. Info: -
Pages: 10 Volume / Issue: 7 (4) Sequence Number: 20160114 Start / End Page: - Identifier: -