Abstract: Optimization of concentration of initiator, reactant, temperature and time respectively on effects of grafting of acrylonitrile and konjac glucomannan (KGM) initiated by ceric ammonium nitrate were studied. The results showed that optimization conditions of grafting are: concentration of initiator 0.01 mol/L, reactant concentration 1.6 mol/L, temperature 50 ℃ and time 3 h. The graft copolymerization is confirmed by IR and X-ray diffraction.

Key words: konjac glucomannan(KGM), acrylonitrile, graft copolymer