Separation and preconcentration of some heavy-metal ions using new chelating polymeric hydrogels

• Published in: Journal of applied polymer science Vol. 113; no. 2; pp. 1335 - 1344
• Main Authors: Sharaf, Mohamed A, Arida, Hassan A, Sayed, S.A, Younis, Ahmed A, Farag, A.B
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.07.2009; Wiley
• Subjects: addition polymerization; Applied sciences; copolymerization; Crosslinking; Entropy; Exact sciences and technology; functionalization of polymers; graft copolymers; Hydrogels; Isotherms; Organic polymers; Physicochemistry of polymers; Polyacrylamides; Properties and characterization; Solution and gel properties; Sorption; Zinc; copolymerization; Organic dithiocarbamate; Adsorption isotherm; graft copolymers; Metal ion; Acrylamide derivative copolymer; pH effect; Experimental study; Sulfur copolymer; Functional polymer; Colloidal gel; Chemical modification; Binding capacity; Ionic selectivity; Preparation; addition polymerization; functionalization of polymers; Complexing ion exchanger; Hydrogel; crosslinking

Two new chelating polymeric hydrogels, crosslinked polyacrylamide/triethylenetetraamine/CS₂Na (hydrogel I) and crosslinked polyacrylamide/diethylenetriamine/CS₂Na (hydrogel II), were prepared by the transamidation and dithiocarbamylation of crosslinked polyacrylamide. The products were characterized...