Premium
Evolution of the structure of mesophase polyfluoroalk‐oxyphosphazenes and liquid crystalline copolyesters
Author(s) -
Plate' Nikolai A.,
Antipov Evgenij M.
Publication year - 1995
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19950980130
Subject(s) - mesophase , differential scanning calorimetry , liquid crystal , materials science , liquid crystalline , chain (unit) , atmospheric temperature range , crystallography , chemistry , thermodynamics , physics , optoelectronics , astronomy
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, differential scanning calorimetry and dynamic mechanical testing within a wide temperature range. Experimental observations show that flexible‐chain polyfluoroalkoxyphosphazenes are inclined to formation of the columnar mesophase and condis crystalline structures, while rigid‐chain random copolyesters mainly exhibit peculiar smectic and nematic liquid crystalline states.