S. Pirkl, J. Mýl
1981
Citations
0
Influential Citations
2
Citations
Journal
Journal name not available for this finding
Abstract
Abstract Phase diagrams of binary mixtures of cholesteryl chloride with cholesteryl elaidate, cholesteryl oleate, cholesteryl brassidate and cholesteryl erucate were established. Temperature and concentration dependences of the maximum selective reflection of visible light, refractive indices, formation of compensated mixtures and dynamic viscosity at shear rates 60 − 2430 s −1 of cholesteric mesophase were investigated. Influence of length and cis - trans isomerisation of ester chain on these properties is showed. Three types of the temperature dependence of viscosity in the proximity of clearing temperatura are established which are determined by the pitch and by the shear rate. Possibilities of practical applications of the investigated systems are considered.