In Situ Synthesis of Silver Nanoparticles in Novel L-phenylalanine Based Poly(amide-benzimidazole-imide) Matrix through Metal Complexation Method Using N,N′-dimethylformamide as a Reaction Medium and Reducing Agent

Silver nanoparticles were obtained in novel optically active poly(amide-benzimidazole-imide) (PABI) matrix through in situ procedure. Chiral PABI was prepared by polycondensation of amino acid based diacid and benzimidazole containing diamine in the presence of molten tetrabutylammonium bromide. Synthesized PABI was characterized by several techniques, including fourier transform infrared spectra, ¹H-NMR, elemental analysis, X-ray diffraction, thermogravimetric analysis and field emission scanning electron microscopy (FE-SEM). Then, PABI/Ag nanocomposite was fabricated based on metal complexation route for preparing silver nanoparticles in the PABI matrix and was characterized by various techniques. Microscopic images revealed good dispersion of Ag nanoparticles in the polymer matrix.