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- W3081203634 endingPage "1679" @default.
- W3081203634 startingPage "1679" @default.
- W3081203634 abstract "The macroscopic properties of novel liquid crystal (LC) systems-LCs with unconventional molecular structure as well as conventional LCs in unconventional geometries-directly descend from their mesoscopic structural organization. While X-ray diffraction (XRD) is an obvious choice to investigate their nanoscale structure, conventional diffractometry is often hampered by experimental difficulties: the low scattering power and short-range positional order of the materials, resulting in weak and diffuse diffraction features; the need to perform measurements in challenging conditions, e.g., under magnetic and/or electric fields, on thin films, or at high temperatures; and the necessity to probe micron-sized volumes to tell the local structural properties from their macroscopic average. Synchrotron XRD allows these problems to be circumvented thanks to the superior diffraction capabilities (brilliance, q-range, energy and space resolution) and advanced sample environment available at synchrotron beamlines. Here, we highlight the potentiality of synchrotron XRD in the field of LCs by reviewing a selection of experiments on three unconventional LC systems: the potentially biaxial and polar nematic phase of bent-core mesogens; the very high-temperature nematic phase of all-aromatic LCs; and polymer-dispersed liquid crystals. In all these cases, synchrotron XRD unveils subtle nanostructural features that are reflected into macroscopic properties of great interest from both fundamental and technological points of view." @default.
- W3081203634 created "2020-09-01" @default.
- W3081203634 creator A5031362127 @default.
- W3081203634 creator A5048992127 @default.
- W3081203634 creator A5049146289 @default.
- W3081203634 creator A5072690736 @default.
- W3081203634 date "2020-08-26" @default.
- W3081203634 modified "2023-09-27" @default.
- W3081203634 title "Nanostructure of Unconventional Liquid Crystals Investigated by Synchrotron Radiation" @default.
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- W3081203634 doi "https://doi.org/10.3390/nano10091679" @default.