Polypyrrole-carbon fiber (Ppy-CF) composite films with carbon fiber (CF) content ranging from 15 to 20 wt % have been prepared by chemical oxidative polymerization of pyrrole at the surface of a CF-covered Teflon substrate following a layer-bylayer deposition approach. The composites have a high mod
Thin polypyrrole films prepared by chemical oxidative polymerization
โ Scribed by Yiqing Lu; Gaoquan Shi; Chun Li; Yingqiu Liang
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 135 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
Polypyrrole (PPY) films with a thickness of 3-4 m were obtained by chemical oxidation of pyrrole (PY) at the interface of chloroform and water with an oxidant (NH 4 ) 2 S 2 O 8 . The films were compact and could be removed with a solid plate. The quality and compositions of these films varied with the molar ratios of the monomer and oxidant of the reaction systems. Overoxidation of polypyrrole was observed and confirmed by the characterizations via infrared spectra and elemental analysis of the films.
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Two kinds of conductive polypyrrole composites were prepared by in-situ polymerization of pyrrole in a suspension of chlorinated polyethylene powder or in a natural rubber latex using ferric chloride as oxidizing agent. The preparation conditions were studied and the results showed that it is better
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