ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE

BI Xiantong; PEI Qibing; LI Yongfang

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ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE

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- ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE
- Vol. 6, Issue 4, Pages: 377-385(1988)
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- Published：20 December 1988
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BI Xiantong, PEI Qibing, LI Yongfang. ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE[J]. 1988, 6(4): 377-385.
DOI：

BI Xiantong, PEI Qibing, LI Yongfang. ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE[J]. 1988, 6(4): 377-385. DOI：

摘要

A study on the electrooxidative polymerization of pyrrole onto polyurethane-coated platinum electrodes and the electrochemical properties of the composite polyurethane/polypyrrole films (PU/PPy) as-prepared is presented. It is found that polypyrrole grows layer by layer from the polyurethane/platinum interface through the polyurethane matrix

and ca. 20 wt.% of polypyrrole will fill up the matrix. Cyclic voltemmograms show that the composite films are porous

and the reduction-reoxidation (redox) rate of the composite films is limited by the diffusion of counteranions through the films.Larger anion size leads to slower diffusion process.The composite films can also act as modified electrodes.

Abstract

and ca. 20 wt.% of polypyrrole will fill up the matrix. Cyclic voltemmograms show that the composite films are porous

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