Effect of amounts of water as solvent
To study the effect of amount of water during grafting of BA, graft copolymerization has been carried out as a function of amount of water and the results are presented in Fig. 1a. It has been observed that percentage of grafting of BA shows an initial jump in percentage of grafting with increasing amount of water, from 50 mL to 150 mL giving maximum grafting in 90 mL and then decreases sharply on further increase in the amount of water and becomes almost constant