EVOLUTION OF THE STRUCTURE OF MESOPHASE POLYFLUOROALK-OXYPHOSPHAZENESAND LIQUID-CRYSTALLINE COPOLYESTERS

Citation
Na. Plate et Em. Antipov, EVOLUTION OF THE STRUCTURE OF MESOPHASE POLYFLUOROALK-OXYPHOSPHAZENESAND LIQUID-CRYSTALLINE COPOLYESTERS, Macromolecular symposia, 98, 1995, pp. 341-363
Citations number
29
Categorie Soggetti
Polymer Sciences
Journal title
ISSN journal
10221360
Volume
98
Year of publication
1995
Pages
341 - 363
Database
ISI
SICI code
1022-1360(1995)98:<341:EOTSOM>2.0.ZU;2-Q
Abstract
Comparative analysis of the temperature evolution of the structure of linear organoelement polyfluoroalkoxyphosphazenes and wholly aromatic main-chain copolyesters was carried out using X-ray analysis, differen tial scanning calorimetry and dynamic mechanical testing within a wide temperature range. Experimental observations show that flexible-chain polyfluoroalkoxyphosphazenes are inclined to formation of the columna r mesophase and condis crystalline structures, while rigid-chain rando m copolyesters mainly exhibit peculiar smectic and nematic liquid crys talline states.