Photo-Induced Graft Copolymerization of Acrylonitrile onto Sodium Salt of Partially Carboxymethylated Psyllium

Photo - induced grafting of acrylonitrile (AN) onto sodium salt of partially carboxymethylated psyllium (Na-PCMPsy) has been carried out using ceric ammonium nitrate (CAN) as a photo initiator in an aqueous medium. The reaction variables including concentrations of initiator, nitric acid, monomer and amount of the backbone as well as time and temperature have been varied for establishing grafting. The influence of these reactions conditions on the grafting yield has been discussed. The overall activation energy of grafting has been calculated. The FT-IR spectroscopy, thermal (TGA) and scanning electron microscopic (SEM) techniques have been used for the characterization of graft copolymer.

Author(s): Amit B Dholakia1 , Kirit H Patel2 and Harikrishna C Trivedi3

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