Journal
EUROPEAN POLYMER JOURNAL
Volume 39, Issue 7, Pages 1319-1324Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0014-3057(03)00033-8
Keywords
polyaniline; film thickness; electrical conductivity
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The chemical oxidation of aniline with ammonium persulphate (APS) in aqueous acidic medium to form polyaniline (PANI) films has been studied using the quartz crystal microbalance (QCM) technique. PANI films can also grow onto glass supports immersed in the reaction mixture during the polymerization. The optical absorption for these films was measured. Multilayer deposition of polymer films onto the gold electrode of QCM and onto the glass supports from consecutive repetitive treatments by the reaction mixture containing aniline and APS, were studied. The induction period, the yield and the growth rate of the polymer films during the multilayer deposition were discussed. A relation between the thickness of the films determined, from QCM technique and the optical absorption of the films was established. The electrical conductivity of the PANI films was also measured. (C) 2003 Elsevier Science Ltd. All rights reserved.
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