title: Microwave assisted synthesis of polyacrylamide grafted agar (Ag-g-PAM) and its application as flocculant for wastewater treatment.
abstract: Grafting of polyacrylamide (PAM) chains was performed onto the backbone of Agar by microwave assisted method, using microwave radiation in synergism with ceric ammonium nitrate (CAN) as the chemical free radical initiator. The intended grafting of the PAM chains were confirmed through intrinsic viscosity study, FTIR spectroscopy and elemental analysis (C, H, N, O & S). Further characterization of the grafted product was done in form of SEM morphology and TGA study. Flocculation efficacy of the synthesized graft copolymers was studied in kaolin suspension, through 'Jar test' procedure. Further, flocculation efficacy of the 'best grade' (as determined by 'jar test' in kaolin suspension) in wastewater was studied for possible application in reduction of pollutant load of wastewater.
authors.affiliation: Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India.
authors.forename: Sumit
authors.initials: S
authors.lastname: Mishra
authors.forename: Gautam
authors.initials: G
authors.lastname: Sen
authors.forename: G Usha
authors.initials: GU
authors.lastname: Rani
authors.forename: Sweta
authors.initials: S
authors.lastname: Sinha
mesh_terms: D000180:Acrylic Resins / Q000138:chemical synthesis* / Q000737:chemistry; D000362:Agar / Q000138:chemical synthesis* / Q000737:chemistry; D004602:Elements; D005427:Flocculation; D007616:Kaolin / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D008872:Microwaves; D017550:Spectroscopy, Fourier Transform Infrared; D013535:Suspensions; D013696:Temperature; D014783:Viscosity; D018508:Water Purification / Q000379:methods*; D000099166:Polyacrylamides
chemical_list: D000180:Acrylic Resins; D000362:Agar; D004602:Elements; D007616:Kaolin; D013535:Suspensions; D000099166:Polyacrylamides