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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2500

Title: Pressure studies on 7S5, 8S5 and their mixtures
Authors: Kalkura, A.N.
Krishna Prasad, S.
Shashidhar, R.
Issue Date: Oct-1983
Publisher: Gordon and Breach Science Publishers.
Citation: Molecular Crystals and Liquid Crystals, 1983, Vol.99, p193-202
Abstract: Pressure studies have been taken up on heptyloxy-p'-pentylphenylthiobenzoate , octyloxy-p'-pentylphenyl thiobenzoate and their mixtures. It is observed that the range of the smectic A phase increases with increasing pressure with an accompanying decrease in the smectic C range. Thus, although two kinds of triple points, viz., crystal-smectic C nematic and smectic (mosaic)-smectic C-smectic A have been observed in the P-T diagrams of and the NAC point observed in the temperature-concentration diagram of binary mixtures of and at the 42.5% concentration of could not be observed in the P-T diagram of either the pure compounds or the mixtures, whose concentrations were chosen on either side of the critical 42.5% concentration. These studies also show that pressure has the effect of increasing the stability of the monolayer smectic A in contrast to the case of the bilayer smectic A wherein pressure destabilizes the layer causing the nematic phase to reenter.
Description: Restricted Access. Paper presented at the 9th international conference on liquid crystals held at Bangalore in 1982.
URI: http://hdl.handle.net/2289/2500
ISSN: 1058-725X
Alternative Location: http://dx.doi.org/10.1080/00268948308072042
Copyright: 1983 OPA (Overseas Publishers Association) N.V.
Appears in Collections:Research Papers (SCM)

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