Liquid Crystalline Cyclotriphosphazenes: Full Substitute Trimeric Derivative with 12-carbon-chain Mesogen Moiety
Abstract
Full substituted p-(dodecyloxy)-phenol derivative of cyclotriphosphazene (trimer) was synthesized in order
to investigate its mesogenic properties. Firstly, p-(dodecyloxy)-phenol (1) was synthesized from the reaction
of hydroquinone and 1-bromododecane. Hexachlorocyclotriphosphazene (trimer) was reacted in a 1:8
molar ratio in tetrahydrofurane (THF) presence of sodium hyride (NaH) as base at room temperature for 24
hours and then under the reflux for a day. Full substituted derivative (2) was obtained and its structure was
determined by mass analysis, and by FT–IR, 1H and 31P {1H} NMR spectroscopic techniques. Additionally
thermal and mesomorphic behaviours were examined by differential scanning calorimetry (DSC),
polarising optical microscopy (POM) and X-ray diffraction (XRD) techniques. By contrast with literature,
results showed that compound 2 has liquid crystal behavior.
Keywords
Cyclotriphosphazene Liquid crystal Differential scanning calorimeter Polarising optical microscopy X-ray Diffraction
References
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Abstract
References
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Details
| Subjects | Engineering |
|---|---|
| Journal Section | Articles |
| Authors | |
| Publication Date | December 26, 2016 |
| Published in Issue | Year 2016 Volume: 12 Issue: 3 |
