Alignment of helical nanofilaments on the surfaces of various self-assembled monolayers

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We successfully prepared controlled layers of NOBOW molecules on a variety of self-assembled monolayers (SAMs) such that the layers formed oriented domain structures in which the complex chiral/polar crystalline helical nanofilaments (HNFs) were arranged to form a B4 bent-core liquid crystal (LC) phase. The alignment of the B2 phase, which formed at a higher temperature than the B4 phase, affected the direction of the HNFs. The HNFs formed on the B2 smectic layers and were aligned parallel or perpendicular, respectively, to the substrates with high or low surface energies (molecule-philic or -phobic SAM-treated substrates). The HNFs confined within rectangular microchannels modified by the SAMs were directly visualized by electron microscopy and X-ray diffraction studies. The orientations of the HNFs were found to be governed by the B2 smectic layer morphology.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2013
Language
English
Article Type
Article
Keywords

LIQUID-CRYSTAL PHASE; ACHIRAL MOLECULES; CONFINEMENT; GEOMETRY; DOMAINS; MESOGEN

Citation

SOFT MATTER, v.9, no.26, pp.6185 - 6191

ISSN
1744-683X
DOI
10.1039/c3sm50637a
URI
http://hdl.handle.net/10203/174369
Appears in Collection
NT-Journal Papers(저널논문)
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