1. Novel Fluorinated Ferroelectric Organosiloxane Liquid Crystals.
- Author
-
Zoghaib, W. M., Carboni, C., George, A. K., AL-Manthari, S., Al-Hussaini, A., and Al-Futaisi, F.
- Subjects
LIQUID crystals ,FERROELECTRIC crystals ,SILICONES ,FLUORINATION ,ORGANIC synthesis ,PHASE equilibrium ,CHIRALITY - Abstract
A progress report on the synthesis and characterisation of a series of fluorinated chiral bi-mesogen low molar mass organosiloxane materials is presented. The mesogenic moiety is identical to that in the TSiKN65F mono-mesogen material reported by Naciri et al., which displays a de Vries-type SmA* phase. The parameter varied across the series is the length of the alkyl chain linking the mesogen moiety to the siloxane. The material with 10 carbon atoms in the chains displays a stable smectic phase with ferroelectric response at room temperature, whereas the materials with 6, 7 and 8 carbon atoms tend to crystallize. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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