Synthesis of polyaniline-g-polystyrene/ZnO via Atom Transfer Radical Polymerization(ATRP) and In-situ chemical oxidative

The polymerization could be a free radical polymerization or an atom transfer radical polymerization. The process of atom transfer radical polymerization (ATRP) is better thanthe free radical polymerization as control of molecular weight and size of the particle can be achieved. The coatingof polymer on ZnO nanoparticles is generally done by ATRP. The surface of the ZnO particle is modified with a suitable initiator. One of the methods would be to attach a brominegroup to the surface of ZnO nanoparticles and add to solution containing the monomer of the shell polymer. The polymer,if it has suitable groups attached to it allows the monomer which are generally aromatic compounds to form adduct. The monomer can be polymerized by adding suitable oxidizing agents[1].