Liquid crystalline behaviour of some azobenzene dyes

Campbell, David J., Dix, Leslie and Rostron, Paul (1995) Liquid crystalline behaviour of some azobenzene dyes. Dyes and Pigments, 29 (1). pp. 77-83. ISSN 0143-7208

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Official URL: http://dx.doi.org/10.1016/0143-7208(95)00029-F

Abstract

A number of 4-aminoazobenzene dye units have been synthesised and subjected to thermal analysis by differential scanning calorimetry and hot stage optical microscopy. It is observed that liquid crystalline phase behaviour exists for those dyes having a nitro group in the 4-position on the terminal phenyl ring and with a short hydrocarbon 'tail' at the amino site with a terminal alcohol. Other structures in the series were not liquid crystalline. It appears that a highly polar terminal group and short hydrocarbon tail is required to form thermotropic mesophases.

Item Type: Article
Subjects: F100 Chemistry
Department: Faculties > Health and Life Sciences > School of Life Sciences > Applied Sciences
Depositing User: Becky Skoyles
Date Deposited: 18 Feb 2015 09:52
Last Modified: 23 Feb 2016 11:54
URI: http://nrl.northumbria.ac.uk/id/eprint/18612

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