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Graft copolymerization of Methacrylic acid on to potato starch initiated by Ceric ammonium nitrate

Author:

Dr. Vidyagauri Lele and Kusum Baser

Subject Area:

Physical Sciences and Engineering

Abstract:

The grafting of methacrylic acid on to granular potato starch in an aqueous medium initiated by ceric ammonium nitrate (CAN) has been studied. The effect of initiator concentration, monomer concentration, polymerization time and temperature, material to liquor ratio and presence of solvent have been studied in terms of percentage grafting (%PG) and grafting efficiency (%GE). The %GE was found to decrease with increase in monomer concentration, but the reverse trend was obtained on increasing the polymerization time, temperature and concentration of initiator. Acid hydrolysis and infrared (IR) spectroscopy were used for the confirmation of graft copolymer formation.

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