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Title: Calorimetric study of nonyloxybenzoyloxy-cyanoazobenzene (90BCAB)
Authors: Leach, P.
Das, P.
Garland, C.W.
Shashidhar, R.
Issue Date: Mar-1989
Publisher: Gordon and Breach Science Publishers.
Citation: Molecular Crystals and Liquid Crystals, 1989, Vol.168, p183-188
Abstract: Calorimetric studies of 90BCAB have been made using DSC and high-resolution ac techniques. A small heat capacity peak associated with the smectic-Ad(SmAd)-reentrant nematic (Nr) second-order transition has been observed. Analysis in terms of the critical exponent agr suggests the possibility of Fisher renormalization at this SmAd-Nr transition. DSC measurements have shown the presence of two metastable crystal phases (denoted CrX and CrY) as well as the equilibrium CrK crystal phase. The latent heats for first-order transitions among these crystal phases and for the Nr-CrX and Nr-CrK melting/freezing transitions have been determined. The transition from Nt into the monotropic mon-olayer smectic-A phase was preempted in our experiments by Nr rarr CrX freezing.
Description: Restricted Access.
ISSN: 1058-725X
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Copyright: 1989 OPA (Overseas Publishers Association) N.V.
Appears in Collections:Research Papers (SCM)

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