Unusual properties of a bent-core liquid-crystalline fluid

Goertz, Verena and Southern, Christopher and Roberts, Nicholas W. and Gleeson, Helen F. and Goodby, John W. (2009) Unusual properties of a bent-core liquid-crystalline fluid. Soft Matter, 5 (2). pp. 463-471. ISSN 1744-683X

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In our investigations of a family of achiral bent-core bis-(phenyl)oxadiazole derivatives, we observed some unusual properties of the nematic phase. These include evidence of segregation into domains of opposite handedness and the formation of clusters, nematic phase biaxiality, and a strongly kinetically governed phase behaviour, which leads to the display of unique filament structures at the onset of new order. We suggest that the combination of a deviant calamitic molecular shape with a considerable transverse dipole leads to an unusual strength and combination of molecular interactions, and as a consequence these nematic materials need to be considered as fluctuating and dynamically changing, multi-hierarchical fluids.

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Journal Article
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Soft Matter
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07 Aug 2013 10:30
Last Modified:
22 Nov 2022 00:04