ABSTRACT
Grafting copolymerization of different monomers onto cellulose is clarified. Several oxidant systems have been used to generate free radicals on cellulose molecules to initiate graft copolymerization as photoactive quinones, ozone, hydroxyl radicals, eerie ammonium nitrate, potassium bromate, and potassium perminganate. Partially, xanthate cellulose is also used for the preparation of grafting. On the other hand, the effects of different physical treatments, e.g., beating, grinding, and cellulose swelling with ethylene diamine, on the reactivity of cellulose toward grafting are studied. Also the effect of partial carboxymethylation and acetylation with a different degree of substitution (DS) on the grafting of cellulose has been studied. Finally, the effect of grafting medium (aqueous or solvent) on the cellulose graftability with monomer is discussed.
