Various new types of polyamides [-NHCO-(CH2)(2)-S-S-(CH2)(2)-CONH-R-, I-IV : R = -(CH2)(n)-, n = 4, 6, 8, 12, V:R = -(CH2)(2)-S-S-(CH2)(2)-] containing disulfide bonds in the polymer backbone are prepared by condensation of 3,3’-dithiodipropionic acid and the corresponding diamine (I-IV : NH2-(CH2)(n)-NH2, n = 4, 6, 8, 12 and V:cystamine, NH2-(CH2)(2)-S-S-(CH2)(2)-NH2] with an interfacial polymerization technique. The polyamides I-V carbon paste electrodes (polyamide I-V/graphite electrode) show the redox response due to cycling between disulfide and thiol (thiolate) in acetonitrile solution containing 0.1 M LiClO4. The capacity of the polyamide II estimated from the peak area of the cyclic voltammogram is 20.00 Ah kg(-1) (per kg of polyamide II, the theoretical value is 184.56 Ah kg(-1)). Polyamide II shows the highest capacity of the polyamides I-V. The dissolution of the thiolate ions that occurs in the usual organodisulfide system was not observed in the polyamide electrode. The electrochemical behavior of the polyamide II(graphite) electrode that was prepared by dipping the graphite powder into methanoic acid solution containing polyamide II is also described. The electrochemical behavior of the polyamide II(graphite) electrode was basically similiar to that of the polyamide II graphite electrode. However, the capacity for the polyamide II(graphite) electrode is lower than that for the polyamide II/graphite electrode.