Self-assembled hydrophobic surface generated from a helical nanofilament (B4) liquid crystal phase

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Hydrophobic air/liquid crystal (LC) surfaces exhibiting self-assembled dual scale roughness have been made by simple cooling of a bent-core mesogen from its high temperature isotropic melt through two liquid crystal phases. The transition to the fluid smectic B2 phase generates micron-scale toric focal conic domains (TFCDs) at the surface. Upon further cooling into the hexatic smectic B4 phase these TFCD structures are preserved and become textured by the nanometer-sized helical nanofilaments (HNFs) of the B4. The resulting TFCD/HNF surface is hydrophobic and shows clear evidence for surface tension reduction characteristic of dual-scale roughness, suggesting a simple self-assembly-based approach to low surface tension surfaces using LC morphology.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2013-01
Language
English
Article Type
Article
Keywords

FOCAL CONIC DOMAINS; ACHIRAL MOLECULES; SUPERHYDROPHOBIC SURFACES; SYSTEMS; WATER

Citation

SOFT MATTER, v.9, no.10, pp.2793 - 2797

ISSN
1744-683X
DOI
10.1039/c3sm27221d
URI
http://hdl.handle.net/10203/174663
Appears in Collection
NT-Journal Papers(저널논문)
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