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A novel nematic-like mesophase induced in dimers, trimers and tetramers doped with a high helical twisting power additive

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JournalSoft Matter
DateAccepted/In press - 12 Aug 2018
DateE-pub ahead of print (current) - 24 Oct 2018
Number of pages7
Pages (from-to)1-7
Early online date24/10/18
Original languageEnglish

Abstract

From the observation of a previously undiscovered nematic-like mesophase (NX) by Archbold et al., we report on several new binary liquid-crystalline mixtures between the high helical twisting power dopant RM1041 and a selection of dimers with varying average bend angles and conformational landscapes. We also report on mixtures between RM1041 and oligomeric LC materials. We find that dimers and oligomers exhibit not only chiral nematic and twist-bend modulated phases, but also the same NX phase reported by Archbold, indicating that this state of matter (the structure of which is yet to be definitively characterised) is exhibited by a wide range of materials. Mixtures of the dimer CB9CB with a selection of different chiral dopants suggest that it is the helical twisting power of the chiral additive that is responsible incidence of the NX phase.

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© The Royal Society of Chemistry 2018

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