Grafting techniques have received considerable attention from scientists all over the world, especially systems in which the monomer involved is a polysaccharide. This is probably due to their availability and low cost. Graft polymerization results in the formation of active sites at a point on the substrate polymer molecule. Most graft copolymers are formed by radical polymerization, ultraviolet or ionising radiation or redox initiation. Other methods can also be used to produce the polymer radicals that lead to graft copolymers.