Grafting onto Protein. I. Graft Copolymerization of Poly(methyl Acrylate) onto Gelatin

Graft copolymerization of acrylamide onto tamarind kernel powder in the presence of ceric ion

“…The percent grafting exhibits progressive improvement with the increase in reaction time and showed maximum %G (231.45%) at 2 h. This effect of time on grafting can be explained by the fact that more the contact time of monomer molecules with the TKP macroradicals sites, the higher will be the grafting, but the decrement in %G and %GE occurs beyond 2 h which can be rationalized on account of depletion of monomer and initiator concentration with the progress of the reaction. Further with an increase in the reaction time, mutual annihilation of growing grafted chains also occurs leading to a decrease in %G and %GE 13, 19, 20, 36…”

Graft copolymerization of acrylonitrile onto Cassia tora gum with ceric ammonium nitrate–nitric acid as a redox initiator

“…As shown in this figure, the % G increased rapidly with increasing time up to 4 h, after which it leveled off. The increase in % G was accounted for by the increase in the number of grafting sites in the initial stages of reaction 29, 30. The leveling off of grafting after 4 h could be attributed to a decrease in concentration of both the initiator and monomer and to a reduction in the number of sites on the backbone accessible for grafting as the reaction proceeded.…”

Graft copolymerization of methyl methacrylate onto gelatin using KMnO4‐H2SO4 redox system

“…Vinyl monomers such as methacrylonitrile, 1 acrylonitrile, 1,4 methyl acrylate, 9 butyl acrylate, 10 and ethyl acrylate 11 can be grafted onto gelatin by various techniques. There are also some studies concerned with grafting methyl methacrylate (MMA) onto gelatin in the literature.…”