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Measurements of optical anisotropy of a calamitic lyotropic liquid crystal
Author(s) -
Beica T.,
Moldovan R.,
Tintaru M.,
Enache I.,
Frunza S.
Publication year - 2004
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200310163
Subject(s) - thermotropic crystal , liquid crystal , lyotropic liquid crystal , lyotropic , birefringence , optical anisotropy , anisotropy , micelle , chemistry , optics , materials science , crystallography , organic chemistry , liquid crystalline , physics , aqueous solution
Optical birefringence measurements for a calamitic lyotropic liquid crystal containing sodium lauryl sulphate/decanol/water are presented. A value of the order of 10 ‐3 was obtained, much smaller than that of thermotropic liquid crystals. The order parameter temperature dependence is evaluated using an extrapolating method and taking into accounts the influence of the micelle shape. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)