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Título

Topography of bent-core liquid crystals at the air/liquid crystal interface

AutorChen, Dong; Gimeno, Nélida; Ros, M. Blanca; Clark, Noel A.
Palabras claveBent-core
Free surface
Microstructure
Self-assembly
Liquid crystal
Fecha de publicación2013
EditorTaylor & Francis
CitaciónLiquid Crystals 40(12): 1730-1735 (2013)
ResumenBent-core liquid crystals show a variety of novel structures involving the interplay of molecular bend, tilt and polarisation. Here we investigate the microstructures of the B4, B7 and the dark conglomerate (DC) phases at the air/liquid crystal interface. In these phases, bent-core molecules undergo complex self-assembly, forming helical nanofilaments (the B4 phase), layer undulations (the B7 phase) and disordered focal conics (the DC phase) in the bulk. However, due to the fluidity of the phases and the homeotropic alignment at the interface, several different topographies are observed at the air/liquid crystal interface. We will discuss the surface structures discovered so far in the B4, B7 and DC phases and show how they help us to understand the microstructure and the self-assembly of the liquid crystal phases of bent-core molecules. © 2013 © Taylor & Francis.
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URIhttp://hdl.handle.net/10261/117931
DOI10.1080/02678292.2013.839832
Identificadoresdoi: 10.1080/02678292.2013.839832
issn: 0267-8292
e-issn: 1366-5855
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