Abstract
Graft copolymerization of acrylic acid onto wool fibers was carried out with quinquivalent vanadium as the initiator in an aqueous medium under nitrogen atmosphere. The percentage of grafting was influenced by reaction time, temperature, concentrations of acid, monomer, initiator and base polymer. Grafting has also been carried out in the presence of various organic solvents. It has bcen observed that 193.7% of grafting is obtained at 55°C for [AA]=1.46 M, [V+5]=0.025 M, Wool=0.2 g and for a reaction time of 6 h. A suitable mechanism has been proposed for graft initiation and termination. A theoretical rate equation has been derived. The behaviour of the graft copolymers towards mineral acids and alkalis has been tested. Their tensile properties, dye-uptake ability and absorption of water and water vapour have also been examined.
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Giri, G., Nanda, C. & Samal, R. Graft Copolymerization onto Wool Fibers: Graft Copolymerization of Acrylic Acid onto Wool Fibers Initiated by Quinquivalent Vanadium. Polym J 21, 883–893 (1989). https://doi.org/10.1295/polymj.21.883
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DOI: https://doi.org/10.1295/polymj.21.883