Film thickness studies for the chemically synthesized conducting polyaniline
Film thickness studies for the chemically synthesized conducting polyaniline
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DOI：
10.1016/s0014-3057(03)00033-8
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发表时间：
2003-07
影响因子：
6
通讯作者：
M. Ayad;M. A. Shenashin
中科院分区：
文献类型：
--
作者：
M. Ayad;M. A. Shenashin
采用石英晶体微天平（QCM）技术研究了酸性水溶液中苯胺与过硫酸铵（APS）的化学氧化反应制备聚苯胺（PANI）膜。PANI膜也可以在聚合期间在浸入反应混合物中的玻璃载体上生长。测量了这些薄膜的光吸收。研究了用苯胺和APS反应液在石英微天平金电极和玻璃载体上连续多次沉积聚合物膜的方法。讨论了多层膜沉积过程中聚合物薄膜的诱导期、产率和生长速率。建立了QCM技术测得的薄膜厚度与薄膜光吸收之间的关系。还测量了PANI膜的电导率。
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.