Poly (amidoamine-co-acrylic acid) copolymer: Synthesis, characterization and dye removal ability

► Poly (amidoamine-co-acrylic acid) copolymer (PAC) was synthesized and characterized. ► Isotherm data followed Langmuir isotherm. ► Q0 for DR31, DR80 and AB25 was 3400, 3448 and 3500 mg/g, respectively. ► Kinetics data followed pseudo-second order kinetic model. ► PAC was regenerated at pH 12.