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Title: Direct transition from a nematic phase to a polar biaxial smectic A phase in a homologous series of unsymmetrically substituted bent-core compounds
Authors: Reddy, Amaranatha R.
Sadashiva, B.K.
Issue Date: 2004
Publisher: Royal Society of Chemistry
Citation: Journal of Materials Chemistry, 2004, Vol.14, p310 - 319
Abstract: The synthesis and characterization of twenty seven new compounds belonging to three homologous series of compounds derived from 3-hydroxybenzoic acid are reported. One of the terminal positions of the constituent molecules of these compounds is substituted with a strongly polar cyano group while the other end contains an n-alkyl chain attached to a biphenyl moiety. Twenty two of these compounds show the polar partial bilayer biaxial smectic A phase which is antiferroelectric in nature. In addition, a direct transition from the nematic phase to the polar partial bilayer biaxial smectic A phase which has not been seen before is also reported. The mesophases have been characterized using polarized light optical microscopy, differential scanning calorimetry, X-ray diffraction studies and electro-optical experiments.
Description: Restricted Access.
ISSN: 0959-9428
1364-5501 (Online)
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Copyright: 2004 Royal Society of Chemistry
Appears in Collections:Research Papers (SCM)

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