Tiong Haa, Sie and Ming Koh, Teck and Yeow Yeap, Guan and Cheu Lin, Hong and Siew Ling, Lee and Foo Win, Yip and Teng Ong, Siew (2010) Mesogenic schiff base esters with benzothiazole core: synthesis and phase transition studies. Phase Transitions: A Multinational Journal, 83 (3). 195 - 204. ISSN 0141-1594
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Official URL: http://dx.doi.org/10.1080/01411591003600375
Abstract
A series of new rod-shaped mesomorphic compounds, 6-ethoxy-2-(4-alkanoyloxybenzylidenamino)benzothiazoles, consisting of a 2,6-disubstituted benzothiazole core and a Schiff base central linkage, were synthesized and their structures were ascertained via elemental analysis and spectroscopic techniques. Their mesomorphic properties were studied using differential scanning calorimetry (DSC), polarized optical microscopy (POM) and X-ray diffraction (XRD) analysis. All compounds showed enantiotropic mesomorphism. Whilst the lower members of the series, hexanoyloxy and octanoyloxy derivatives exhibited nematic phase, the higher members (decanoyloxy, dodecanoyloxy, tetradecanoyloxy, hexadecanoyloxy and octadecanoyloxy derivatives) exhibited nematic and smectic C phases.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science |
| Divisions: | Science |
| ID Code: | 26302 |
| Deposited By: | Liza Porijo |
| Deposited On: | 29 Jun 2012 07:58 |
| Last Modified: | 17 Oct 2017 03:20 |
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