Grafting of vinyl monomers onto nylon‐6. 1. Graft copolymerization of acrylamide onto nylon‐6 using trivalent manganese as initiator

Abstract

Abstract The use of trivalent manganese to initiate graft‐copolymerization of acrylamide onto nylon‐6 has been investigated. The rate of grafting has been determined by varying monomer, manganese(III), temperature and solvent mixtures. The graft yield increases with increasing monomer concentration up to 0.8 M and with further increase of monomer concentration the graft yield decreases. The percentage of grafting increases with managanese (III) ion concentration up to 5.25 × 10 −3 M and thereafter it decreases. The rate of reaction depends on temperature. Among the solvent composition studied, a water/solvent mixture containing 25% of the solvent seems to constitute the most favourable medium for grafting and with further increase of solvent composition, the graft yield decreases.