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Solvent induced structural transitions in a liquid crystalline polyester
Author(s) -
Carotenuto Maurizio,
Guadagno Liberata,
Vittoria Vittoria,
Galli Giancarlo,
Chiellini Emo
Publication year - 1996
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1996.030170702
Subject(s) - liquid crystal , crystallization , polyester , materials science , solvent , phase (matter) , amorphous solid , phase transition , polymer , crystallography , polymer chemistry , chemical physics , chemical engineering , organic chemistry , chemistry , thermodynamics , composite material , physics , optoelectronics , engineering
Quenched nematic films of a liquid crystalline polyester were crystallized either thermally or by solvent induced crystallization, and their structural organization was analyzed. All techniques show that the thermal crystallization transforms part of the nematic phase into a crystalline one, the remaining part leaving unchanged. By contrast, the solvent induced crystallization does transform a part of the nematic phase into a crystalline phase, leaving the residual part in a much more disordered state resembling the amorphous state.