Journal of Applied Polymer Science, Vol.90, No.1, 129-136, 2003
Graft copolymerization of acrylonitrile onto Cassia tora gum with ceric ammonium nitrate-nitric acid as a redox initiator
The graft copolymerization of acrylonitrile (AN) onto Cassia tora gum (CTG) was carried out in an aqueous medium with a ceric ammonium nitrate (CAN)nitric acid initiation system. The percentage grafting and percentage grafting efficiency were determined as functions of the concentrations of CAN, nitric acid, AN, and CTG and the polymerization temperature and time. The results are discussed, and a reaction mechanism is proposed. (C) 2003 Wiley Periodicals, Inc.