Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2009-08-04
Phase Transitions, Volume 82, Issue 8 August 2009 , pages 620 - 631
Physics
Condensed Matter
Soft Condensed Matter
Scientific paper
10.1080/01411590903283654
We present a polarising optical microscopy study of a liquid-crystal mixture of trans-4-hexylcyclohexanecarboxylic acid (C6) and benzoic acid. Both materials have carboxylic groups that can form dimers through hydrogen bonding. The mixture is nematic and room temperature and has the clearing point at 88 Celsius. The nematic phase shows ringed spherulites, sometimes looking like spiral structures, and undulated textures, which remain visible heating the sample till 71 Celsius. This is the temperature of a texture transition inside the nematic phase.
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