Synthesis of conducting polypyrrole and polycarbazole containing hydroxamic acid groups

✍ Scribed by S.H. Hosseini; A. Entezami

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 522 KB
• Volume: 31
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(95)00011-9

✦ Synopsis

Although conducting polyheteroaromatics have been widely investigated, those containing hydroxamic acid groups have not been studied. In this work we have synthesized various N-(carbohydroxamic acid)pyrrole and N-(carbohydroxamic acid)carbazole derivatives from a series of N-substituted ester groups. The compounds obtained were then chemically polymerized in the presence of oxidants such as ammonium persulphate, and Iron (III) perchlorate. The conductivity of these polymers was measured by four probe methods. The compounds N-(2-ethane-carbohydroxamic acid)pyrrole (VI), 9-(carbohydroxamic acid)carbazole (VII), and 9-(2-ethanecarbohydroxamic acid)carbazole (XII) were successfully electropolymerized by a cyclic voltametry method under 6 x IO-' M of monomer, 0. I M tetrabutylammonium perchlorate, 20ml acetonitrile, Pt disk working electrode, and SCE as a reference electrode condition. These compounds gave coloured complexes with certain metals.