ISSN:
1435-1536
Keywords:
Liquid crystalline polyesters and copolyesters
;
aliphatic spacers
;
quasi binary system
;
mesogenic unit
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract We have investigated the influence of aliphatic spacers with different lengths on the phase diagram of LC main chain copolyesters, based on x-ray and calorimetric measurements. The thermodynamic description is based on the assumption that considers each sequence, composed of mesogenic unit and spacer, as a “particle”. This allows to interpret the phase diagram of copolyesters as a quasi binary system. General features, such as an azeotropic point found in LC copolyesters, are related to the differences of the excess energies in LC and other phases.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00657983
