Depolarized Light Intensity and Optical Microscopy of some Mesophase-forming Materials
- 1 January 1969
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals
- Vol. 5 (3), 257-271
- https://doi.org/10.1080/15421406908083460
Abstract
Eight mesophase-forming compounds were studied by the technique of depolarized light analysis. The temperatures at which anisotropy changes occurred were compared with results from differential thermal analysis. Although anisotropy change and uptake of heat are usually synchronous, in some cases thermal uptake is almost complete prior to a significant change in the anisotropic behavior of the compound. The observations made explain many of the discrepancies between mesophase transition temperatures observed by differential thermal analysis and optical methods. Photomicrographs of the various mesophase types examined are presented.Keywords
This publication has 8 references indexed in Scilit:
- Heats and Temperatures of Transition of Some Aromatic Liquid Crystal-Forming MaterialsMolecular Crystals, 1968
- The Polymorphism of Cholesteryl Esters: Differential Thermal and Microscopic Measurements on Cholesteryl MyristateMolecular Crystals, 1967
- Gel formation and spherulite production in the mesomorphic melts of cholesterol estersJournal of Colloid and Interface Science, 1967
- Oscillatory flow birefringence of dilute polymer solutionsJournal of Polymer Science Part B: Polymer Letters, 1967
- Temperatures of Liquid Crystal Transitions in Cholesteryl Esters by Differential Thermal Analysis1The Journal of Physical Chemistry, 1966
- The Mesomorphic State - Liquid CrystalsChemical Reviews, 1957
- Beziehungen zwischen dem räumlichen Bau und der Bildung flüssiger Kristalle bei Cholesterin-DerivatenZeitschrift für Naturforschung B, 1949
- Beiträge zur Kenntniss des CholesterinsMonatshefte für Chemie / Chemical Monthly, 1888