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Title: Ferroelectric and antiferroelectric liquid crystalline phases in some pyridine carboxylic acid derivatives
Authors: Kasthuraiah, N.
Sadashiva, B.K.
Krishna Prasad, S.
Nair, Geetha G.
Issue Date: 1996
Publisher: Royal Society of Chemistry
Citation: Journal of Materials Chemistry, 1996, Vol.6, p1619-1625
Abstract: The synthesis and mesomorphic properties of two series of compounds viz.(S)-(+)-4-(1-methylheptyloxy)phenyl 4-(6-alkoxypyridine-3-carbonyloxy)benzoates and (S)-(+)-l-methylheptyl4-[4-(6-alkoxypyridine-3-carbonyloxy)benzoyloxy]-benzoates are reported; the homologues of the former series exhibit smectic A and smectic C* phases while the derivatives of the latter series show rich polymesomorphism including the antiferroelectric phase. The mesophases have been characterised by using optical polarising microscopy and differential scanning calorimetric methods. Some physical properties such as the spontaneous polarisation, helical pitch, tilt angle and relative permittivity of two derivatives have also been investigated.
Description: Restricted Access.
ISSN: 0959-9428
1364-5501 (Online)
Alternative Location:
Copyright: 1996 Royal Society of Chemistry
Appears in Collections:Research Papers (SCM)

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