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Liquid‐crystalline polyimides, 16 . Chiral thermotropic copoly(ester‐imide)s based on isosorbide and N ‐(4‐carboxyphenyl)trimellitimide
Author(s) -
Kricheldorf Hans R.,
Probst Nicolas
Publication year - 1995
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.1995.030160401
Subject(s) - thermotropic crystal , isosorbide , imide , condensation polymer , hydroquinone , liquid crystalline , polymer chemistry , materials science , isosorbide dinitrate , liquid crystal , organic chemistry , chemistry , polymer , composite material , optoelectronics , medicine
A series of chiral copoly(ester‐imide)s was prepared by polycondensation of N ‐(4‐carboxy‐phenyl)trimellitimide with mixtures of isosorbide and phenylhydroquinone. All copolyesters are non‐crystalline. They form a cholesteric melt, when containing more than 50 mol‐% of phenyl‐hydroquinone. Containing 5 or 10 mol‐% of isosorbide a “Grand‐Jean” texture is detected above 300°C and 350°C, respectively.