Graft copolymerization of methyl acrylate onto nylon1010 initiated by potassium diperiodatonickelate(IV)

In this article, the graft copolymerization of methyl acrylate (M-A) onto n ylon1010 by using potassium diperiodatonickelate(IV) [Ni(IV)]-nylon1010 red ox system as initiator was studied in alkaline medium. The effect of differ ent factors on grafting parameters was investigated. The structure of the g raft copolymer was determined by infrared (IR), X-ray diffraction, and scan ning electron microscope (SEM). It was found that Ni(IV)-nylon1010 system i s an efficient redox initiator for this graft copolymerization. A single-el ectron transfer mechanism is proposed to explain the formation of radicals and the initiation. The graft copolymer was used as the compatibilizer in b lends of poly(methyl methacrylate) (PMMA) and nylon1010. The SEM photograph s indicate that the graft copolymer greatly improved the compatibility of t he blend. (C) 2001 John Wiley & Sons, Inc.