Formation of the liquid crystal state of cellulose diacetate in nitromethane vapor: A fourier IR study

• Published in: Russian journal of applied chemistry Vol. 85; no. 10; pp. 1617 - 1621
• Main Authors: Lirova, B. I., Lyutikova, E. A.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-10-2012
• Subjects: Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Industrial Chemistry/Chemical Engineering; Macromolecular Compounds and Polymeric Materials; Liquid Crystal Phase; Pyranose Ring; Intramolecular Hydrogen Bond; Anisotropic Structure; Vapor Sorption
• ISSN: 1070-4272; 1608-3296
• DOI: 10.1134/S1070427212100242

The structure, intra- and intermolecular interactions, and conformations of macromolecules in cellulose diacetate films under the conditions of formation of the liquid crystal state in the course of nitromethane vapor sorption were studied by Fourier IR spectroscopy and polarization microscopy. The number of intramolecular hydrogen bonds stabilizing the rigid helical conformation of the macromolecules is preserved in the process. The anisotropic structure of cellulose diacetate films is also preserved after desorption of the sorbed solvent vapor.