Novel fluorinated ferroelectric organosiloxane liquid crystals

W. M. Zoghaib, C. Carboni, A. K. George, S. Al-Manthari, A. Al-Hussaini, F. Al-Futaisi

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)123-131
Number of pages9
JournalMolecular Crystals and Liquid Crystals
Volume542
DOIs
Publication statusPublished - 2011

Keywords

  • bi-mesogen
  • de-Vries phase
  • ferroelectric
  • organosiloxane
  • smectic
  • synthesis
  • trimer

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Science(all)

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