ABSTRACT
I. INTRODUCTION A graft copolymer is a polymer comprising molecules with one or more species of block connected to the main chain as side chains, having constitutional or configurational features that differ from the main chain, exclusive of branch points [1]. In a graft copolymer, the distinguishing feature of the side chains is constitutional: the side chains comprise units derived from at least one species of monomer different from those that supply the units of the main chain [1]. The recommended IUPAC nomenclature for graft copolymers states that the name of the backbone polymer should be given first, and the name of the grafted branch second, the word graft indicating the structure of the macromolecules [1]. Thus, poly(styrene-gra/fisoprene) or poly(styrene-g-isoprene) refers to a graft copolymer containing a polystyrene backbone with polyisoprene grafts or branches [1].
