Chromonic liquid crystalline nematic phase exhibited in binary mixture of two liquid crystals

A binary mixture of abietic acid and orthophosphoric acid (H3PO4) exhibits co-existence of biphasic region of Nematic+Isotropic (N+I), lyotropic Nematic (ND) and Smectic-G (SmG) phases. The mixture exhibits N+I, N and SmG phases at different concentrations and at different temperatures. Mixtures wit...

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Bibliographic Details
Main Authors: Govindaiah, T. N., Sreepad, H. R., Sridhar, K. N., Sridhara, G. R., Nagaraja, N.
Format: Conference Proceeding
Language:English
Subjects:
ABUNDANCE
BINARY MIXTURES
CALORIMETRY
CONCENTRATION RATIO
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIFFERENTIAL THERMAL ANALYSIS
LIQUID CRYSTALS
Nematic crystals
PHASE STABILITY
PHASE STUDIES
Phases
PHOSPHORIC ACID
SMECTITE
TEMPERATURE DEPENDENCE
TEXTURE
X-RAY DIFFRACTION
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Description
Summary:A binary mixture of abietic acid and orthophosphoric acid (H3PO4) exhibits co-existence of biphasic region of Nematic+Isotropic (N+I), lyotropic Nematic (ND) and Smectic-G (SmG) phases. The mixture exhibits N+I, N and SmG phases at different concentrations and at different temperatures. Mixtures with all concentrations of abietic acid exhibit I→N+I→N→SmG phases sequentially when the specimen is cooled from its isotropic melt. These phases have been characterized by using differential scanning calorimetric, X-ray diffraction, and optical texture studies.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4917616