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Synthesis and Characterization of Copolymers of 2- methyl aniline with aniline and 2-aminobenzoic acid Capacity

Omar Melad, Hussein Alhendawi and Mohammed Fayyad

The chemical copolymerization of 2-methyl aniline with aniline and 2-aminobenzoic acid has been performed by chemical and inverse emulsion polymerization. 2-methyl aniline–aniline copolymer and 2- methyl aniline–co–2-aminobenzoic acid were synthesized at different molar ratios and at different temperatures. The copolymers of 2-methyl aniline with aniline show a greater resemblance to the poly(2- methyl aniline) due to the higher amounts of 2- methyl aniline in the copolymer, this lead to an increase in the solubility, but a lowering in the conductivity. The synthesis of 2-methyl aniline–2-aminobenzoic acid copolymer show high yield and conductivity values at room temperature compared to those synthesized at 0 and 60OC due to higher rate of polymerization of poly (2- methyl aniline) at room temperature. The characterization of the copolymers was investigated using a number of techniques including FTIR, UV–Vis, conductivity and elemental analysis.