New AFLC: a trimesogen presenting antiferroelectric smectic C phase (SmCA) and twist grain boundary smectic A phase (TGBA)

New AFLC: a trimesogen presenting antiferroelectric smectic C phase (SmCA) and twist grain boundary smectic A phase (TGBA)

A first oligomeric antiferroelectric liquid crystal, a cyclohexane based trimesogen, was synthesized. It was characterized by microscopic observation, differential scanning calorimetry, helical pitch measurement, X-ray diffraction and electro-optical study. A large domain of antiferroelectric phase...

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Veröffentlicht in:Liquid crystals 1998-03, Vol.24 (3), p.347-359
Hauptverfasser: LI, MIN-HUI, DETRE, LAURENT, CLUZEAU, PHILIPPE, ISAERT, NOEL, NGUYEN, HUU-TINH
Format: Artikel
Sprache:eng
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Zusammenfassung:A first oligomeric antiferroelectric liquid crystal, a cyclohexane based trimesogen, was synthesized. It was characterized by microscopic observation, differential scanning calorimetry, helical pitch measurement, X-ray diffraction and electro-optical study. A large domain of antiferroelectric phase (DeltaT 55 C) and a very rich polymorphism (SmC*, SmC*, SmC*, A FI SmC*, TGBA, BP) are exhibited by the trimesogen.
ISSN:0267-8292
1366-5855
DOI:10.1080/026782998207154