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http://hdl.handle.net/2289/2347
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. |
URI: | http://hdl.handle.net/2289/2347 |
ISSN: | 1058-725X |
Alternative Location: | http://dx.doi.org/10.1080/00268948908045970 |
Copyright: | 1989 OPA (Overseas Publishers Association) N.V. |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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1989 MCLC V168 p183.pdf Restricted Access | Restricted Access | 306.05 kB | Adobe PDF | View/Open Request a copy |
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