Journal
SOFT MATTER
Volume 5, Issue 2, Pages 463-471Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b808283a
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Funding
- EU
- EPSRC
- Leverhulme Trust
- Biotechnology and Biological Sciences Research Council [BB/G022917/1] Funding Source: researchfish
- Engineering and Physical Sciences Research Council [EP/C512251/1, EP/D055261/1, EP/D500192/1, EP/G023611/1] Funding Source: researchfish
- BBSRC [BB/G022917/1] Funding Source: UKRI
- EPSRC [EP/G023611/1, EP/D500192/1, EP/D055261/1] Funding Source: UKRI
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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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