Seven polyamides containing s-triazine rings in the main chain were synthesized by high temperature polycondensation of 2-(b-naphthylamino)-4,6-bis(naphthoxy-3-carbonyl chloride)-s-triazine [NANCCT] with various aromatic diamines such as 4,4 0 -diaminodiphenyl [DADP], 4,4 0 -diaminodiphenylamide [DADPA], 4,4 0 -diaminodiphenylsulphone [DADPS], 4,4 0 -diaminodiphenylsulphonamide [DADPSA], 4,4 0 -diaminodiphenyl methane [DADPM], 2,4-diamino toluene [DAT] and p-phenylene diamine [PPDA]. All the polyamides were characterized by solubility tests, density measurements, viscosity measurements, IR spectra, NMR spectra, and thermogravimetric analysis. The polyamides had inherent viscosities in the range 0.88-1.16 g=dL in N,N 0 -dimethyl formamide at room temperature (30 C). All the polyamides showed good thermal stability at high temperatures and most of them were soluble readily at room temperature in polar solvents.
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