Product was
characterized by NMR techniques. V. Singh et
al. explore the application of GG-g-MA graft
copolymer for removal of health hazard Cr (VI)
from aqueous system or industrial waste. They
fabricated copolymer by using
persulfate/ascorbic acid as a redox pair. Same
copolymer was synthesis by Tivari et al.for
insitu fabrication of tissue engineering
scaffolds. Cerium (IV) incited grafting of
polyacrylonitrile on to guar gum was
investigated by Thimma et al.Reaction
conditions were optimized for each experiment.
Effect of temperature, initiator concentration,
guar and acrylonitrile molar ratios was
investigated on grafting percentage. Hydrolysis
of modified GG is done to obtain anionic guar
with good water holding capacity. J.H. Trivedi
et al.established a reaction mechanism for
grafting of acrylonitrile on partially
carboxymethy guar gum (DS-0.49) to obtain
novel derivatives using cerric ammonium
sulphate as a catalyst. Reaction conditions
were varied such as concentrations of nitric
acid, cerric ammonium nitrate, and monomer
and time effect to obtain copolymer with maximum percentage of grafting. For the
analysis of grafted polymer FTIR, thermal
(TGA/DSC) and scanning electron microscopic
(SEM) techniques have been applied.