Abstract
Abstract Procedures for characterization of lyotropic nematics in cylindrical capillaries by optical microscopy in orthoscopic geometry are presented. Typical textures due to surface alignment allow unambiguous characterization of Nc (cylindrical micelles) and Nd (discotic micelles) phases. Typical textures due to the compromise between surface and magnetic alignment allow unambiguous definition of the sign of the diamagnetic anisotropy susceptibility δχ. The textures allow also estimates of anisotropies of elastic constants for Nd lyomesophases.
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