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A Litmus‐Type Colorimetric and Fluorometric Volatile Organic Compound Sensor Based on Inkjet‐Printed Polydiacetylenes on Paper Substrates
Author(s) -
Yoon Bora,
Park In Sung,
Shin Hyora,
Park Hye Jin,
Lee Chan Woo,
Kim JongMan
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201200841
Subject(s) - polydiacetylenes , diacetylene , materials science , inkjet printing , polymer , inkwell , fluorescence , volatile organic compound , naked eye , ph indicator , colorimetry , nanotechnology , monomer , chemistry , organic chemistry , optics , chromatography , physics , composite material
Inkjet‐printed paper‐based volatile organic compound (VOC) sensor strips imaged with polydiacetylenes (PDAs) are developed. A microemulsion ink containing bisurethane‐substituted diacetylene (DA) monomers, 4BCMU, was inkjet printed onto paper using a conventional inkjet office printer. UV irradiation of the printed image allowed fabrication of blue‐colored poly‐4BCMU on the paper and the polymer was found to display colorimetric responses to VOCs. Interestingly, a blue‐to‐yellow color change was observed when the strip was exposed to chloroform vapor, which was accompanied by the generation of green fluorescence. The principal component analysis plot of the color and fluorescence images of the VOC‐exposed polymers allowed a more precise discrimination of VOC vapors.