New antiferroelectric compounds from chiral terphenyls
2006
The homologous series of (S)-4″[6-(alkanoyloxy)hexyl-1-oxy]-4-(1-metylheptyloxycarbonyl)terphenyl, (S)-4″[6-(perfluoroalkanoyloxy)hexyl-1-oxy]-4-(1-metylheptyloxycarbonyl)terphenyl and (S)-4″[6-(perfluoroalkanoyloxy)hexyl-1-oxy]-2,3-difluoro-4-(1-metylheptyloxycarbonyl)terphenyls have been recently synthesised. Their synthesis and mesomorphic properties were described. Liquid crystal phases were determined by thermomicroscopic and microcalorimetric measurements, and confirmed using the miscibility method. Temperatures and enthalpies of phase transitions have been measured.
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