| Abstract: | Graft copolymerization of various vinyl monomers onto Leucaena glauca seed gum has been performed using hydrogen peroxide as the initiator in aqueous slurry. Guar gum grafts also have been prepared to compare graftability of both the gums as they are structurally related to each other. To study the grafting behaviour of vinylic monomers towards the polygalactomannans the reaction conditions were kept constant for all the sets. The choosen monomers were acrylonitrile, methylmethacrylate, acrylamide, styrene, methacrylic acid and acrylic acid. The reaction products were characterized by grafting parameters like percent grafting, grafting frequency, grafting efficiency along with thermogravimetric and infra-red spectroscopic analysis. |
