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Chem Commun (Camb). 2014 Jan 21;50(6):716-8. doi: 10.1039/c3cc47934j. Epub 2013 Nov 28.

Direct detection of ultralow trace amounts of isocyanates in air using a fluorescent conjugated polymer.

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  • 1Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6.


A fluorescence sensory polymer containing the pentiptycene and tetraphenylethylene units linked by acetylene was synthesized for direct detection of isocyanates in air. Eight industrially available aliphatic and aromatic isocyanates were tested. The polymer film shows a rapid fluorescence quenching response to any type of isocyanates with a ppt level of detection limit, which is much lower than the permissible exposure limit of 5 ppb.

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