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Banana-shaped dopants for flexoelectric nematic mixtures

Aziz, Nayar; Kelly, Stephen M.; Duffy, Warren; Goulding, Mark


Nayar Aziz

Stephen M. Kelly

Warren Duffy

Mark Goulding


The synthesis is reported of new meta-substituted quaterphenyls and several related dimers as dopants for nematic mixtures with flexoelectric properties. The number and nature of the terminal substituents is varied from apolar with a small dipole moment to polar with a strong dipole moment. The number of methylene units in the flexible aliphatic spacer between the polyfluorinated aromatic groups of the dimers is also varied. Dimers capable of banana-shaped conformers induce an increase in the flexoelectric coefficients of mixtures containing them and reduce the clearing point to a small extent.


Aziz, N., Kelly, S. M., Duffy, W., & Goulding, M. (2008). Banana-shaped dopants for flexoelectric nematic mixtures. Liquid crystals, 35(11), 1279-1292.

Journal Article Type Article
Acceptance Date Sep 28, 2008
Online Publication Date Dec 5, 2008
Publication Date 2008-11
Print ISSN 0267-8292
Electronic ISSN 1366-5855
Publisher Taylor and Francis
Peer Reviewed Peer Reviewed
Volume 35
Issue 11
Article Number PII 906182072
Pages 1279-1292
Keywords Banana‐shaped dopant; Flexoelectric nematic; Quarterphenyl; Dimer
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