| ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE |
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| 引用本文： | 毕先同,裴啟兵,李永舫. ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE[J]. 高分子科学, 1988, 0(4): 377-385 |
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| 作者姓名： | 毕先同 裴啟兵 李永舫 |
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| 作者单位： | Institute of Chemistry，Academia Sinica，Institute of Chemistry，Academia Sinica，Institute of Chemistry，Academia Sinica Beijing，Beijing，Beijing |
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| 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.
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| 收稿时间： | 1988-01-08 |
ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE |
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| BI Xiantong,PEI Qibing,LI Yongfang. ELECTROCHEMICAL STUDIES ON CONDUCTING COMPOSITE FILMS FROM POLYURETHANE AND POLYPYRROLE[J]. Chinese Journal of Polymer Science, 1988, 0(4): 377-385 |
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| Authors: | BI Xiantong PEI Qibing LI Yongfang |
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| Affiliation: | Institute of Chemistry; Academia Sinica; Academia Sinica Beijing; Beijing |
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| Abstract: | 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. |
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| Keywords: | Polypyrrole Conducting composite Electrochemistry |
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