Preparation and characterization of melt grafted acrylamide tertiary butyl sulfonic acid onto polypropylene

Abstract Grafting of acrylamide tertiary butyl sulfonic acid (ATBS) onto polypropylene (precisely, ethylene/propylene random copolymer containing 8% ethylene content) was carried out by melt extruding with addition of dicumyl peroxide (DCP) as an initiator. The structure of graft copolymer was characterized by using WAXS, FT-IR, ESCA and DSC. Improved thermal stability was observed for graft copolymer. The effect of monomer and initiator concentration, reactive temperature and srew speed on degree of grafting efficiency of grafting has been investigated.