A Basic Study on the Synthesis of Anlidoxile Type Chelate Resin(II) -Synthesis and Characterization of Pseudo-Amidoxime Type Chelate ResBn Derived from Crosslinked Polystyrene Resin Matrix

Amidoxime형 Chelate Resin의 합성에 관한 연구(II) -가교 Polystyrene 기체로 부터 유도되는 유사-아미드옥심형 Chelate Resin의 합성과 특성화-

Pseudo-amidoxime type chelate resin was synthesized through the cyanomethylation of gel type crosslinked chloromethylated (PCMS) and subsequent amidoximation of cyano-substituted PCMS(PCMS-CN). As crosslinking agent, divinylbenaene(Dn) and ethyleneglycol-dimethacrylate(EGD) were added in polymerlzation of chloromethylstyrene. In cyano substitution of PCMS, the degree of substitution amounts to 80-90 percent regardless of the kind of crosslinklng agent and the degree of crosslinking. Amidoximation accompanied cyclization side reaction between Introduced amidoxime group was observed. Several models for cyclization reartion were proposed on the basis of chlorine and nitrogen content of amidoximated-PCMS Pseudo-amidoxime type chelate resin has a low adsorption capacity for metal ions compared with amidoxime type chelate resin derived from crosslinked polyacrylonitrile matrix.