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New crosslinked derivative of chitosan was prepared by the condensation reaction of chitosan (CS) and dichloro glyoxime. Structural analysis of chitosan derivative (CSL) was performed by elemental analysis (C, H, N), SEM measurements, FT-IR, solid-state 13C CP/MAS NMR, XRD-powder and TGA. Crosslinking ratio was determined from the elemental analysis by using the C/N and found to be 70%. The swelling behavior of derivative was investigated on pH 3-7 and 10 at 25 and 37°C. Metal ion uptake capacity was studied towards of selected transition metals Cu(II), Ni(II), Co(II), Fe(II) and (Cd(II) cations in aqueous medium. According to the results of the analyses; water retention capacity and metal uptake capacity of new cross-linked chitosan derivative is higher than chitosan and metal uptake sequence are Cu(II) > Fe(II) >Cd(II) > Co(II) > Ni(II) respectively.

Synthesis, Characterization, Swelling Behavior and Metal Uptake Studies of Dichloroglyoxime Crosslinked Chitosan Derivative