Synthesis and characterization of substituted aromatic polyesters derived from phenoxy‐ and <i>tert</i>‐butylhydroquinone

Abstract

Abstract Aromatic polyesters 5 and 6 were synthesized from tert ‐butyl‐ and phenoxyhydroquinone ( 4a and 4b ) and terephthalic acids 3a–e . The introduction of substituents reduces the phase transition temperature and increases the solubility of the corresponding polyesters in common solvents. As a result, soluble, amorphous and liquid‐crystalline aromatic polyesters were obtained. Unexpectedly, the phenoxyhydroquinone moiety suppresses the formation of a mesophase in some polyesters.