Copolyesters based on s-triazine moiety:: Synthesis and characterization

Ten copolyesters have been synthesized by high temperature polycondensation of 2-(beta-naphthylamino)-4,6-bis(naphthoxy-3-carbonyl chloride)-s-triazine [NANCCT] with each of the mixture of diols:[Bisphenol-A(BPA)(+) Bisphenol-C(BPC)], [BPA+Hydroquinone(Hq)], [BPA+1,5-Dihydroy naphthalene(1,5-DHN)], [BPA+1,4-Dihydroyanthraquinone(1,4-DHA)], [BPA+Catechol(C)], [BPA+Resorcinol(R)], [BPA+Ph], [Ph+1,4-DHA], [Ph+C] and [Ph+R]. All the copolyesters have been characterized by solubility, density, viscosity measurements, IR and NMR spectra, and thermogravimetric analysis. All the copolyesters are soluble at high temperature in acetone, dimethylformamide (DNIF), dimethylsulphoxide (DMSO), dimethylacetamide (DMA), etc. and have reduced viscosity in the range 0.400-0.641 dL/g in DMF at 30 degrees C. Copolyester derived from diol mixture [BPA+1,4-DHA] show greater thermal stability than the other copolyesters.