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http://hdl.handle.net/2289/6483| Title: | Synthesis and comparative studies of phase transition behaviour of new dimeric liquid crystals consisting of dimethyluracil and biphenyl cores |
| Authors: | AbdulKarim-Talaqa., Mohammad Srinivasa, H.T. Sie-Tiong, Ha Hariprasad, S. Guan-Yeow, Yeap |
| Issue Date: | Jul-2016 |
| Publisher: | Elsevier B.V |
| Citation: | Journal of Molecular Liquids, 2016, Vol. 219, p 765-772 |
| Abstract: | A new homologous series of mesogens containing 6-amino-1,3-dimethyluracil moiety have been synthesized. The structures of the compounds were characterised by elemental analysis, FT-IR, 1H and 13C NMR spectroscopic techniques. Their mesomorphic properties were studied by polarising optical microscopy attached to a heating stage. Microscopy data were supported with transition temperatures and enthalpy change values obtained from the differential scanning calorimetry analysis. The studies have shown that the mesomorphic properties of the compounds are dependent on the lengths of alkoxy-spacers. Compounds 4a-f with a shorter alkoxy-spacer chain (n = 6) exhibited smectic A phase, while compounds 4g-r with a alkoxy-spacer chain (n = 8 or 10) displayed nematic phase. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/6483 |
| ISSN: | 0167-7322 |
| Alternative Location: | http://dx.doi.org/10.1016/j.molliq.2016.04.025 |
| Copyright: | 2016 Elsevier B.V. |
| Appears in Collections: | Research Papers (SCM) |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 2016_journalofMolLiquids_219_765.pdf Restricted Access | Restricted Access | 906.73 kB | Adobe PDF | View/Open Request a copy |
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