Vanadium(V) initiated graft co-polymerization of vinyl monomers onto poly(vinyl alcohol)
Abstract
The graft co-polymerization of vinyl monomers onto poly(vinyl alcohol) (PVA) by ammonium vanadate (AV) was studied as a function of H2O 2/AV mole ratio, PVA/monomer weight ratio, sulfuric acid concentration, and reaction time and temperature. The presence of hydrogen peroxide at 2 N H2SO4 improves the grafting efficiency of vanadium(V). The optimum time and temperature of the grafting reaction was found to be 3.5 h and 55°C respectively for the most reactive vinyl monomer studied. FT-IR spectroscopy was used for the confirmation of grafting. The thermal stability of the grafted polymer was evaluated. A generalized reaction scheme has been suggested to elucidate the role of vanadium(V) and hydrogen peroxide.
Publication Title
Journal of the Indian Chemical Society
Recommended Citation
Chowdhury, P., & Ali, M. (2008). Vanadium(V) initiated graft co-polymerization of vinyl monomers onto poly(vinyl alcohol). Journal of the Indian Chemical Society (6), 600-606. Retrieved from https://digitalcommons.memphis.edu/facpubs/14397
