Title :
Detection of styrene by SAW sensor based on hydrogen-bond acidic polymer
Author :
Yang Wang ; Xiaosong Du ; Yin Long ; Yi Li ; Yadong Jiang
Author_Institution :
State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China Chengdu, Chengdu, China
Abstract :
In this paper, a surface acoustic wave (SAW) sensor coated with a hydrogen-bond acidic (HBA) polymer was introduced to detect styrene vapor. The polymer, PLF, a polysiloxane with a hexafluoroisopropanol functional group was synthesized by hydrosilylation reaction. And subsequently, PLF was dissolved in chloroform, and spray-coated on a 433.92 MHz two-port oscillator SAW device by an airbrush apparatus. Realtime responses of the obtained sensor to styrene vapor and some common interference vapors were studied. High sensitivity and selectivity of the sensor to styrene were demonstrated. The sensitivity was attributed to the OH/π hydrogen bond interaction between PLF and styrene.
Keywords :
acoustic wave interference; bonding processes; dissolving; gas sensors; polymers; spray coatings; surface acoustic wave oscillators; surface acoustic wave sensors; two-port networks; HBA polymer; PLF; SAW sensor; airbrush apparatus; chloroform dissolution; frequency 433.92 MHz; hexafluoroisopropanol functional group; hydrogen-bond acidic polymer; hydrosilylation reaction synthesis; interference vapor; polysiloxane; spray-coating; styrene vapor detection; surface acoustic wave sensor; two-port oscillator SAW device; Chemicals; Coatings; Interference; Polymers; Sensitivity; Surface acoustic wave devices; Surface acoustic waves;
Conference_Titel :
SENSORS, 2013 IEEE
Conference_Location :
Baltimore, MD
DOI :
10.1109/ICSENS.2013.6688184
