Selective formation of polyaniline on wool by chemical polymerization, using potassium iodate

Abstract It was found out, the condition that polyaniline (PANI) formed selectively on wool. PANI was selectively formed on wool in the case of polymerization of aniline, using potassium iodate (KIO 3 ), as an oxidizing agent in the presence of wool. IR spectrum of PANI–wool composite formed, using KIO 3 , showed the presence of cysteic acid units (Cy SO 3 H) resulted from the oxidation of cystine bonds (Cy S S Cy) in wool. Selective formation of PANI on wool was considered to occur by a concentration of aniline on wool bearing cysteic acid units. It became apparent by IR analysis of oxidized wool that the oxidized layer of the wool textiles was thicker and cystine bonds in wool were converted into more cysteic acids by oxidation, using KIO 3 than using (NH 4 ) 2 S 2 O 8 and K 2 Cr 2 O 7 . Therefore, formation of PANI on wool occurred remarkably in the case of polymerizing aniline, using KIO 3 .

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