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Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4'-yloxy)-6-(4-cyanobiphenyl-4'--yl)hexane (CB6OCB) and comparison with CB7CB

Autor
Paterson, D.; Gao, M.; Kim, Y.; Robles-Hernández, B.; Diez, S.; Salud, J.; Lopez, D.
Tipus d'activitat
Article en revista
Revista
Soft matter
Data de publicació
2016-08-28
Volum
12
Número
32
Pàgina inicial
6827
Pàgina final
6840
DOI
https://doi.org/10.1039/c6sm00537c Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/91470 Obrir en finestra nova
Resum
The synthesis and characterisation of the nonsymmetric liquid crystal dimer, 1-(4-cyanobiphenyl-40-yloxy)-6- (4-cyanobiphenyl-40-yl)hexane (CB6OCB) is reported. An enantiotropic nematic (N)–twist-bend nematic (NTB) phase transition is observed at 109 1C and a nematic–isotropic phase transition at 153 1C. The NTB phase assignment has been confirmed using polarised light microscopy, freeze fracture transmission electron microscopy (FFTEM), 2H-NMR spectroscopy, and X-ray diffraction. The effect...
Citació
Paterson, D., Gao, M., Kim, Y., Robles-Hernández, B., Diez, S., Salud, J., Lopez, D. Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4'-yloxy)-6-(4-cyanobiphenyl-4'--yl)hexane (CB6OCB) and comparison with CB7CB. "Soft matter", 28 Agost 2016, vol. 12, núm. 32, p. 6827-6840.
Paraules clau
Dimers, Hexane, High resolution transmission electron microscopy, Liquid crystals, Nematic liquid crystals, Nuclear magnetic resonance spectroscopy
Grup de recerca
GRPFM - Grup de Recerca en Propietats Físiques dels Materials

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