POLY(ESTER-AMIDE) CAPABLE OF FORMING AN ANISOTROPIC MELT PHASE DERIVED FROM P-HYDROXYBENZOIC ACID, 2,6-DIHYDROXYNAPHTHALENE, CARBOCYCLIC DICARBOXYLIC ACID, AROMATIC MONOMER CAPABLE OF FORMING AN AMIDE LINKAGE AND, OPTINALLY, ADDITIONAL AROMATIC DIOL

摘要

A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. The poly(ester-amide) of the present invention consists essentially of the recurring units (a) p-oxybenzoyl moiety, (b) 2,6-dioxynaphthylene moiety, (c) carbocyclic dicarboxyl moiety, (d) aromatic moiety capable of forming an amide linkage in the polymer, and optionally, (e) p-dioxyaryl moiety, in the proportions indicated. Preferably, the aromatic moiety capable of forming an amide linkage is derived from p-aminophenol or p-phenylenediamine. The resulting poly(ester-amide) exhibits a melting temperature below approximately 400 DEG C., preferably below approximately 350 DEG C. The poly(ester-amide) of the present invention is preferably formed by a melt polymerization technique.