Synthesis and Characterization of Polyamide Containing Maleimide Pendant Group

A series of new polyamides containing maleimide pendant group were prepared by low temperature polycondensation of 5-(4-(2,5-dioxo-2H-pyrrol-1(5H) yl)benzamido)isophthaloyl chloride as a new monomer with various aromatic diamines in NMP. Monomer and polymers structures were identified through FT-IR, 1H-NMR and elemental analysis. Obtained polymers were soluble in polar solvents and non soluble in aprotic solvents. The inherent viscosities of the polymers have been determined in NMP and had values from 0.35 to 0.39 dL/g. Thermal stability of polymers was investigated with thermal gravimetry analysis (TGA) and diffraction scanning calorimetry (DSC). Also thermal behavior of monomer was studied with DSC analysis. X-ray diffraction measurement was used to indicate amorphous structure of polyamide.