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Fluorescence Sensing of Amine Vapors Using a Cationic Conjugated Polymer Combined with Various Anions
Author(s) -
Rochat Sébastien,
Swager Timothy M.
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201404439
Subject(s) - cationic polymerization , polymer , conjugated system , amine gas treating , fluorescence , solubility , chemistry , photochemistry , polymer chemistry , organic chemistry , optics , physics
A series of conjugated cationic polymers, differentiated only by their accompanying counter‐anions, was prepared and characterized. The choice of counter‐anion (CA) was found to drastically impact the solubility of the polymers and their optical properties in solution and in the solid state. Fluorescent polymer thin films were found to be instantaneously quenched by volatile amines in the gas phase at low ppm concentrations, and a mini‐array with CAs as variable elements was found to be able to differentiate amines with good fidelity.