Journal
LIQUID CRYSTALS
Volume 41, Issue 6, Pages 776-783Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02678292.2014.889231
Keywords
SmC phase; SmA phase; homeotropic alignment; 1,2,3-triazole; calamitic liquid crystals
Funding
- Malaysian Ministry of Higher Education or MOHE for the Fundamental Research Grant Scheme (FRGS) [203/PKIMIA/6711265]
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Azobenzene-based calamitic liquid crystals, 4-((4-(4-methoxymethyl-1,2,3-triazol-1-yl)phenyl)diazenyl)phenylalkanoates have been isolated and their structures were characterised. The structure-property correlation with respect to the different alkanoyloxy terminal chain (-COOCnH2n+1 where n adopts odd numbers ranging from 3 to 15) has also been given attention in the present study. In this series, all compounds exhibit smectogenic properties. The lower homologues shows enantiotropic SmA phase as well as monotropic SmC phase. The higher homologues exhibit homeotropic alignment of smectic phases. These compounds possess very high anisotropic inclination in which the mesomorphic region covers nearly 80 degrees C.
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