Abstract
To overcome the problem of film-forming technology, water-soluble polypyrrole was obtained in the process of chemical oxide by adding a small amount of poly (sodium-p-styrenesulfonate). The resulting product PPy/Poly(sodium-p-styrene sulfonat) was coated on the interdigital electrodes of carbon via spin-coating or casting approach, and its gas-sensitivity to trimethylamine at room temperature was investigated. The results indicated that, the technology of film-forming was not only improved greatly, but also this film still showed good gas-sensitivity to trimethylamine of 3.189 × 10−1 mol/m3, its value of gas-sensitivity had reached to 2–3 orders of magnitude within 3 min, had good selectivity to analogy gases, and its resistance to moisture was improved obviously. Otherwise, this film also exhibited good reproducibility and stability, and easily recovered with high-purity N2 at room temperature.
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Acknowledgements
The work was supported by the key project (No.50433020) and the main international cooperation project from the NSFC.
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Ma, X., Li, G., Wang, M. et al. Oxidative polymerization of pyrrole in the presence of a poly (sodium-p-styrenesulfonate) and its gas-responses. J Mater Sci 41, 7604–7610 (2006). https://doi.org/10.1007/s10853-006-0849-2
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DOI: https://doi.org/10.1007/s10853-006-0849-2