This paper offers some new evidence on the polymorphism of solid state of liquid crystalline aromatic copolyesters which were prepared in our laboratory. The effects of different treatment conditions(quenching and annealing) on solid structure have been examined mainly by DSC and X-ray diffraction. The discussion focuses on the supercooled mesophase and low temperature solid-solid transition
the shifting of double melting peaks of annealed samples and the changing of their ΔH data depending on the treatment temperature
time and thermal scanning rate.
Abstract
This paper offers some new evidence on the polymorphism of solid state of liquid crystalline aromatic copolyesters which were prepared in our laboratory. The effects of different treatment conditions(quenching and annealing) on solid structure have been examined mainly by DSC and X-ray diffraction. The discussion focuses on the supercooled mesophase and low temperature solid-solid transition
the shifting of double melting peaks of annealed samples and the changing of their ΔH data depending on the treatment temperature
time and thermal scanning rate.
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