Rational materials design of sorbent coatings for explosives: applications with chemical sensors

A series of chemoselective polymers had been designed and synthesized to enhance the sorption properties of polymer coated chemical sensors for polynitroaromatic analytes. To evaluate the effectiveness of the chemoselective coatings, a polynitroaromatic vapor test bed was utilized to challenge polym...

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Published inTalanta (Oxford) Vol. 54; no. 3; pp. 469 - 485
Main Authors Houser, Eric J, Mlsna, Todd E, Nguyen, Viet K, Chung, Russell, Mowery, Robert L, Andrew McGill, R
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 10.05.2001
Oxford Elsevier
Subjects
Analytical chemistry
Chemistry
Exact sciences and technology
General, instrumentation
Acoustic wave device
Sorption
Nitro compound
Chemoselectivity
Detection limit
Electronic nose
Aromatic polymer
Explosives
Chemical sensor
Coatings
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Summary:A series of chemoselective polymers had been designed and synthesized to enhance the sorption properties of polymer coated chemical sensors for polynitroaromatic analytes. To evaluate the effectiveness of the chemoselective coatings, a polynitroaromatic vapor test bed was utilized to challenge polymer coated surface acoustic wave (SAW) devices with different explosive vapors. Dinitrotoluene detection limits were determined to be in the <100 parts per trillion ranges. ATR-FTIR studies were used to determine the nature of the polymer-polynitroaromatic analyte interactions, and confirm the presence of hydrogen-bonding between polymer pendant groups and the nitro functional groups of polynitroaromatic explosive materials.
Bibliography:ObjectType-Article-1
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ISSN:0039-9140
1873-3573
DOI:10.1016/S0039-9140(00)00545-2