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Graft Copolymerization Of Acrylic Acid Onto Gelatinized Patato Starch For Removal Of Metal Ions And Organic Dyes From Aqueous System

 

Deepak Pathania, Reena Sharma and Susheel Kalia

Volume 3, Issue 3, Page 259-264, Year 2012, Current Issue | DOI: 10.5185/amlett.2012.3328

Keywords: Potato starch; acrylic acid; graft copolymerization; metal ions.

Abstract: 

The graft copolymerization of acrylic acid onto gelatinized potato starch has been carried out at 70 ºC using chromic acid as an initiator. The different reaction parameters such as reaction temperature, initiator and monomer concentrations were optimized to get the maximum percentage grafting. The maximum grafting (93.54%) was observed at 60 ºC, 0.57 molL-1 of acrylic acid and 0.03 mmolL-1 of chromic acid. The grafted samples were evaluated for other physico-chemical properties such as swelling behavior, moisture absorption and chemical resistance. The grafted samples were characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA) techniques. The graft copolymers have been successfully used for the removal of metal ions and organic dyes from aqueous system. Copyright © 2012 VBRI Press.

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