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 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.
Houser
E J
EJ
Naval Research Laboratory, Material Science Division, Code 6375, Washington, DC 20375, USA.
Mlsna
T E
TE
Nguyen
V K
VK
Chung
R
R
Mowery
R L
RL
Andrew McGill
R
R