raft copolymerization of methyl methacrylate (MMA) onto chitosan was carried out by using K2S2O8 as an inititor. By means of different degrees of deacetylatCd chitosan graft copolymerization reaction condition experiments
the effeCts of reaction time
temperature
concentration of initiator and monomer had been investigated. From these experiments
the optinum condition was chosen. The comparison of the reactional results of different degree of deacetylation chitosan with those of N-substitute chitosan under the same reactional condition has demonstrated that the amino groups of chitosan took part in the initiation process.