Synthesis, Characterization and Properties of Polymeric <i>p</i>-Benzoyl-4,4'-Diaminobenzoylaniline

An aromatic polyamide was synthesized by low-temperature poly-condensation reaction from terephthaloyl chloride and 4,4'-diaminobenzanilide (4,4'-DABA). The had a characteristic peak of carbon atoms in the amide group at 166 ppm, which demonstrated solid nuclear magnetic resonance spectrum. It shown to be stretching vibration absorption N-H bond 3342 cm−1 Fourier infrared (FT-IR) spectroscopy. obtained that energy band near 1100 - 1276 belongs para-substituted benzene ring 2977 C-H Raman molecular structure compound confirmed FT-IR, Raman, 13C-NMR spectroscopies. proved polymer is stable up 300˚C has relatively high stability thermogravimetric analysis. also fluorescence spectrum it strong blue 420 nm. morphological characteristics were further electron scanning microscopy (SEM). properties polymeric p-benzoyl-4,4'-diaminobenzoyl-aniline found emit have good thermal stability, making promising functional material for region with potential large-scale applications.