An esteric polymer synthesis and its characterization using starch, glycerol and maleic anhydride as precursor

The synthesis of polymer from starch, glycerol and maleic anhydride using HCl as catalyst is carried out. The polymer obtained has an average molar mass of 1875 g/mol. This and other physicochemical properties of this polymer are presented. The ester group in the polymer is analyzed by IR and NMR spectral studies. The COD and BOD study of polymer is done. The BOD shows first the increase and then decrease during the course of 10 days of analysis.