Measurement of the An isotropic Refractive Indices of Polybenzylglutamate Liquid Crystals. Molecular Factors and Dispersion

Bibliographic Details
Title: Measurement of the An isotropic Refractive Indices of Polybenzylglutamate Liquid Crystals. Molecular Factors and Dispersion
Authors: Dupré, Donald, Lin, Fu-Mei
Source: Molecular Crystals and Liquid Crystals; October 1981, Vol. 75 Issue: 1 p217-224, 8p
Abstract: The ordinary and extraordinary refractive indices have been measured for lyotropic liquid crystal solutions of poly-γ-benzyl-L-glutamate. The onset of the liquid crystal formation is noted as an abrupt jump in the sample birefringence in the biphasic region. The concentration dependence is otherwise unremarkable. The polymer is found to add a small, anisotropic increment to the refractivity of the supporting solvent. Both no and ne can thus be measured in an ordinary Abbé refractometer for the low refractive solvents common to these liquid crystal solutions. The optical birefringence does not depend significantly on polymer molecular weight. Data is also included for the wavelength dependence (dispersion) of no, ne, and Δn.
Database: Supplemental Index
More Details
ISSN:15421406
15635287
DOI:10.1080/00268948108073616
Published in:Molecular Crystals and Liquid Crystals
Language:English