Fluorescent conjugated polymer films as TNT chemosensors

Three prototypical light emitting conjugated polymers, two poly( p-phenylene vinylenes) (MEH-PPV and DP10-PPV) and a poly(diphenylacetylene), were examined for chemosensor applications to detect explosive compounds such as 2,4,6-trinitrotoluene (TNT) and 2,4- and 2,6-dinitrotoluene (DNTs). All polym...

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Bibliographic Details
Published in:Synthetic metals 2004-08, Vol.144 (3), p.297-301
Main Authors: Chang, Chang-Ping, Chao, Chun-Yu, Huang, Jun Huo, Li, An-Kuo, Hsu, Chain-Shu, Lin, Mu-Shih, Hsieh, Bing R, Su, An-Chung
Format: Article
Language:English
Subjects:
Application fields
Applied sciences
Chemosensor
DNT
Exact sciences and technology
Fluorescent conjugated polymer
Polymer industry, paints, wood
Technology of polymers
TNT
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Summary:Three prototypical light emitting conjugated polymers, two poly( p-phenylene vinylenes) (MEH-PPV and DP10-PPV) and a poly(diphenylacetylene), were examined for chemosensor applications to detect explosive compounds such as 2,4,6-trinitrotoluene (TNT) and 2,4- and 2,6-dinitrotoluene (DNTs). All polymer thin films showed high fluorescence quenching sensitivity towards TNT and DNTs, indicating that a wide range of emissive conjugated polymers are potentially useful chemosensor materials for detecting landmines. The relative sensitivity of fluorescence quenching of the polymers by the analytes has been rationalized in terms of the vapor pressure of the analytes, the solubility parameters of the polymers and the analytes, and the relative energy levels of the polymers.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2004.04.003