Abstract
The graft copolymerization of N,N-dimethylacrylamide onto alginate by free radical polymerization using potassium peroxymonosulphate-sarbose as a redox pair in an inert atmosphere was investigated. The reaction conditions for maximum grafting have been optimized by varying the reaction variables, including the concentration of N,N-dimethylacrylamide (7 × 10−2 mol/L to 23 × 10−2 mol/L), potassium peroxymonosulphate (2 × 10−3 mol/L to 18 × 10−3 mol/L), sarbose (0.4 × 10−3 mol/L to 3.4 × 10−3 mol/L), sulphuric acid (1 × 10−3 mol/L to 8 × 10−3 mol/L) and alginic acid (0.4 g/L to 1.8 g/L) along with time duration (60 min to 180 min) and temperature (25°C to 45°C). Water swelling capacity, metal ion sorption and flocculation studies of the synthesized graft copolymer have been performed. The graft copolymer has been characterized by FTIR spectroscopy and thermogravimetric analysis.
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Yadav, M., Sand, A. & Behari, K. Synthesis and characterization of graft copolymer (alginate-g-poly(N,N-dimethylacrylamide)). Chin J Polym Sci 28, 673–683 (2010). https://doi.org/10.1007/s10118-010-9114-x
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DOI: https://doi.org/10.1007/s10118-010-9114-x