Mediated melt functionalization of polypropylene

This work investigated the ability of several kinds of molecules to mediate the melt functionalization of polypropylene. N-Bromosuccinimide, nitroxides, iniferters, thiols and RAFT chain transfer agents were tested as potential mediators. The grafting of maleic anhydride onto polypropylene was carried out with and without mediator and the grafted polymers are discussed in terms of graft content, graft structure and molecular weights.