Anisotropic Fluid Phase Formed by Ionic Liquid-Crystalline Materials with Ammonium Ions
Shiori Tomitaka, Jinzhi Wu, Masanori Nata and Seiji Ujiie
Published: 02 March 2017
Abstract: Ionic liquid-crystalline materials (ILCMs) with ammonium ions were synthesized. Their thermal and orientational properties were studied by polarizing microscopy, differential scanning calorimetry, and X-ray diffraction (XRD). The ILCMs formed the smectic A phase on heating and cooling. A focal conic fan texture was observed in the phase. In addition, the ILCMs spontaneously formed a perpendicular alignment in the smectic A phase. The XRD patterns of the ILCMs consisted of sharp reflections in the small-angle region and broad band in the wide-angle region in the smectic A phase.
Keywords: Anisotropic Fluid, Ionic Liquid Crystal, Thermal Stability, X-ray diffraction.