Polyelectrolyte Multilayer Films Containing Ferrocene: Effects of Polyelectrolyte Type and Ferrocene Contents in the Film on the Redox Properties
Polyelectrolyte Multilayer Films Containing Ferrocene: Effects of Polyelectrolyte Type and Ferrocene Contents in the Film on the Redox Properties
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DOI：
10.1002/elan.200390139
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发表时间：
2003-08
期刊：
影响因子：
3
通讯作者：
Aihua Liu;Yoshitomo Kashiwagi;J. Anzai
中科院分区：
文献类型：
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作者：
Aihua Liu;Yoshitomo Kashiwagi;J. Anzai
通过系统地改变聚合物链的化学结构和膜中Fc基团的含量，研究了Fc-PEM膜的电化学性能。我们通过在金电极表面逐层沉积聚阳离子、Fc修饰的聚烯丙基胺（Fc-PAA）和聚乙烯亚胺（Fc-PEI）以及聚阴离子聚硫酸乙烯酯（PVS）制备了一系列PEM膜。Fc-PAA/PVS和Fc-PEI/PVS膜的氧化还原性能显著依赖于聚合物链中Fc部分的含量和聚合物类型。Fc-PAA和Fc-PEI聚合物链可以穿透插入氧化还原聚合物和电极之间的3或4个PAA/PVS双层。该修饰电极可用于抗坏血酸的电催化氧化。
Electrochemical properties of Fc-PEM films have been studied by changing the chemical structure of the polymer chains and the content of Fc moiety in the film systematically. We have prepared a series of PEM films by a layer-by-layer deposition of polycations, Fc-modified poly(allylamine) (Fc-PAA) and poly(ethyleneimine) (Fc-PEI), and polyanionic poly(vinyl sulfate) (PVS) on the surface of a gold electrode. The redox properties of the Fc-PAA/PVS and Fc-PEI/PVS films depended significantly on the content of Fc moiety in the polymer chains and on the polymer type. Fc- PAA and Fc-PEI polymer chains can penetrate 3 or 4 PAA/PVS bilayers inserted between the redox polymers and electrode. The Fc-PAA film-modified electrode can be used for electrocatalytic oxidation of ascorbic acid.