• Shyam R. Khairkar
• A.R Raut

Chitosan is a versatile biopolymer & to improve its performance, chemical modification has been carried out that lead to the formation of chitosan derivatives called grafted chitosan composites. In this work, three different chitosan grafted composites were prepared as sorbents for cationic dyes. Preparation was succeeded by a novel graft copolymerization method based on radical polymerization with vinyl monomer like N-isopropylacrylamide, methacrylic acid and acrylonitrile in order to address the large amount of swelling of the powdered form of the respective derivatives. The effect of initiator concentration, monomer concentration, time and temperature on %G and %GE were observed. The morphology of the grafted polymers was observed from the SEM picture. Evidence of grafting was obtained from comparison of SEM, XRD, and FTIR of the grafted and non-grafted chitosan as well as solubility characteristics of the composite products.

chitosan; superabsorbent; N-isopropylacrylamide, methacrylic acid and acrylonitrile

"Synthesis of Chitosan grafted Vinyl Co-Polymeric Composites", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 2, page no.475-484, February-2017, Available :http://www.jetir.org/papers/JETIR1702076.pdf

"Synthesis of Chitosan grafted Vinyl Co-Polymeric Composites", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 2, page no. pp475-484, February-2017, Available at : http://www.jetir.org/papers/JETIR1702076.pdf