title: Synthesis and applications of poly(2-hydroxyethylmethacrylate) grafted agar: a microwave based approach.
abstract: Synthesis of graft copolymers under the influence of microwave radiation alone is a rapid, efficient, clean, cheap, convenient, energy-saving and green method. Grafting of poly(2-hydroxyethylmethacrylate) on agar backbone was carried out under the influence of microwave radiation. The synthesis is optimized in terms of percentage grafting and intrinsic viscosity, by varying the microwave irradiation time and monomer (2-hydroxyethylmethacrylate) concentration. The synthesized graft copolymers have been characterized by intrinsic viscosity measurement, FTIR spectroscopy, UV-spectroscopy, elemental analysis (C, H, N, & S), thermal studies and scanning electron microscopy (SEM). Flocculation efficacy of the synthesized graft copolymers was studied in 0.25% kaolin and 1% coal fine suspension, through 'jar test' procedure. Further, flocculation efficacy of the best grade, coagulant (alum) and agar were studied for possible application in remediation of metals from river water.
authors.affiliation: Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi 835 215, Jharkhand, India.
authors.forename: G Usha
authors.initials: GU
authors.lastname: Rani
authors.forename: Sumit
authors.initials: S
authors.lastname: Mishra
authors.forename: Gopal
authors.initials: G
authors.lastname: Pathak
authors.forename: Usha
authors.initials: U
authors.lastname: Jha
authors.forename: Gautam
authors.initials: G
authors.lastname: Sen
mesh_terms: D000362:Agar / Q000138:chemical synthesis / Q000737:chemistry* / Q000648:ultrastructure; D001672:Biocompatible Materials / Q000138:chemical synthesis / Q000737:chemistry; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry*; D008872:Microwaves; D015394:Molecular Structure; D017550:Spectroscopy, Fourier Transform Infrared; D014783:Viscosity
chemical_list: D001672:Biocompatible Materials; D008689:Methacrylates; C005044:hydroxyethyl methacrylate; D000362:Agar
keywords: Agar; Flocculant; Jar test protocol; Microwave based synthesis; Poly(HEMA) grafted agar; River water clarification