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http://dx.doi.org/10.5012/bkcs.2012.33.9.2867

Ionic Liquid/Styrene-Acrylonitrile Copolymer Nanofibers as Chemiresistor for Alcohol Vapours  

Kim, Min-Jae (Department of Chemical Engineering, Inha University)
Kang, Eun-Soo (Department of Chemical Engineering, Inha University)
Park, Dong-Wha (Department of Chemical Engineering, Inha University)
Shim, Bong-Sup (Department of Chemical Engineering, Inha University)
Shim, Sang-Eun (Department of Chemical Engineering, Inha University)
Publication Information
Bulletin of the Korean Chemical Society / v.33, no.9, 2012 , pp. 2867-2872 More about this Journal
Abstract
SAN/$BMIPF_6$ nanofibers were fabricated by an electrospinning process and used as chemiresistors for sensing alcohol vapours. A hydrophobic and air-stable ionic liquid, $BMIPF_6$, was used to impart electrical conductivity to insulating SAN nanofibers. The effects of $BMIPF_6$ addition on the morphology of the nanofibers were explained in terms of surface tension, viscosity and conductivity. After exposing the SAN/$BMIPF_6$ nanofibers collected on an interdigitated electrode to alcohol vapours (ethanol, 1-propanol and 1-butanol), the resistance of the nanofibers decreased due to adsorption of alcohol molecules. The electrospun SAN/$BMIPF_6$ nanofibers sensor exhibited good sensitivity and reproducibility.
Keywords
Ionic liquid; Styrene-Acrylonitrile copolymer; Electrospinning; Nanofibers; Sensor;
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