Sanidic liquid crystals

G. W. Gray and J. W. Goodby. Sanidic Liquid Crystals, Eenard Hill, Glasgow (1984). 

Silicate layers show an extreme anisotropic shape, strong interactions due to their polar-ionic character, and high stiffness compared to conventional polymers. These extraordinary properties resulted in extraordinary phase, orientation, and rheological behavior that is probably comparable discotic or sanidic liquid crystals. Shear rates, which are common in the standard or industrial... 

Mery, S., Haristoy, D., Nicoud, J.-E, Guillon, D., Diele, S., Monobe, H., Shimizu, Y. Bipolar carrier transport in a lameUo-columnar mesophase of a sanidic liquid crystal. J. Mater. Chem. 12, 37 1 (2002)... 

In recent years, rigid-rod polymers with regularly substituted flexible side branches have drawn a lot of attention, since they exhibit both high thermal resistance and excellent solubility. In addition, these polymers, if properly designed, can become even fusible. In structure, most of them are crystalline" and form sanidic liquid crystallinity, even though they are strongly branched. This new crystal stmcture is called layered crystal structure. ... 

FriedeP was the first who distinguished three main classes of liquid crystals, according to the different kind of orders in the mesophases nematic, smectic, and cholesteric. From the point of view of the geometrical shape of molecules, we divide the thermotropic LCs into calamitic phases (when the molecules are rodlike), sanidic phases (when the molecules are bricklike), and the discotic phases (when the molecules are disklike)... 

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