The Structure of Mesophases of Binary and Multicomponent Mixtures of some Cholesteric Liquid Crystals
作者:
DušankaŽ. Obadović,
Anikó Vajda,
TiborTóth Katona,
Radmila Marinković-Nedučin,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 265,
issue 1
页码: 135-141
ISSN:1058-725X
年代: 1995
DOI:10.1080/10587259508041685
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
We present the results of the study of binary and multicomponent mixtures of cholesteryl enanthate with cholesteryl nonanoate and cholesteryl formiate. The aim of the study is the preparation of the system with phase transition temperature close to room temperature. Phase diagrams of binary mixtures are formed on the basis of data obtained by the optical microscopy and DS calorimetry and the shift of phase transition points of order 30–50° with respect to initial components was established. In the case of three- and four-component mixtures, we have identified the presence of enantiomorphic phase transitions of smectic and cholesteric type respectively. X-ray diffraction data have enabled the characterization of the structure of smectic or cholesteric mesophase and the calculation of molecular parameters: apparent length of the moleculesland the average intermolecular distance (D).
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