Real-time detection of styrene using SAW sensors based on hexafluoroisopropanol group functionalized hydrogen-bond acidic polymers

Yang Wang; Xiaosong Du; Yin Long; Xianzhong Tang; Zhi Chen; Yadong Jiang

doi:10.1016/j.snb.2014.09.067

Real-time detection of styrene using SAW sensors based on hexafluoroisopropanol group functionalized hydrogen-bond acidic polymers

Yang Wang, Xiaosong Du, Yin Long, Xianzhong Tang, Zhi Chen, Yadong Jiang

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Hydrogen-bond acidic (HBA) polymers are well-established adsorbents for organophosphorus compounds and nitroaromatic explosives detection. In this paper, we report two HBA polymers for detection of styrene vapors based on 434-MHz surface acoustic wave (SAW) chemical sensors. These polymers, dubbed PLF and LSFA, are pendent hexafluoroisopropanol (HFIP)-group modified polysiloxanes, which were synthesized by one-step hydrosilylation reaction. Real-time response studies of these two sensors showed that they are highly sensitive to styrene vapors with excellent selectivity. After exposure to 5 mg/m³ styrene vapor, the frequency shifts of the PLF and LSFA sensors have increased by 6.3 kHz and 3.2 kHz, respectively. The polymers are 20-fold less sensitive to toluene than to styrene while they have comparable sensitivity to 1-butene. In situ infrared spectroscopy studies demonstrated that the polymer-styrene interaction is attributed to the OH/π hydrogen bond between HFIP groups of the polymers and the ethylene group of styrene molecules.

Original language	English
Pages (from-to)	252-257
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	206
DOIs	https://doi.org/10.1016/j.snb.2014.09.067
State	Published - Jan 2015

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© 2014 Elsevier B.V. All rights reserved.

Keywords

Hexafluoroisopropanol group
Hydrogen-bond acidic polymer
SAW sensor
Styrene

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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title = "Real-time detection of styrene using SAW sensors based on hexafluoroisopropanol group functionalized hydrogen-bond acidic polymers",

abstract = "Hydrogen-bond acidic (HBA) polymers are well-established adsorbents for organophosphorus compounds and nitroaromatic explosives detection. In this paper, we report two HBA polymers for detection of styrene vapors based on 434-MHz surface acoustic wave (SAW) chemical sensors. These polymers, dubbed PLF and LSFA, are pendent hexafluoroisopropanol (HFIP)-group modified polysiloxanes, which were synthesized by one-step hydrosilylation reaction. Real-time response studies of these two sensors showed that they are highly sensitive to styrene vapors with excellent selectivity. After exposure to 5 mg/m3 styrene vapor, the frequency shifts of the PLF and LSFA sensors have increased by 6.3 kHz and 3.2 kHz, respectively. The polymers are 20-fold less sensitive to toluene than to styrene while they have comparable sensitivity to 1-butene. In situ infrared spectroscopy studies demonstrated that the polymer-styrene interaction is attributed to the OH/π hydrogen bond between HFIP groups of the polymers and the ethylene group of styrene molecules.",

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author = "Yang Wang and Xiaosong Du and Yin Long and Xianzhong Tang and Zhi Chen and Yadong Jiang",

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T1 - Real-time detection of styrene using SAW sensors based on hexafluoroisopropanol group functionalized hydrogen-bond acidic polymers

AU - Wang, Yang

AU - Du, Xiaosong

AU - Long, Yin

AU - Tang, Xianzhong

AU - Chen, Zhi

AU - Jiang, Yadong

PY - 2015/1

Y1 - 2015/1

N2 - Hydrogen-bond acidic (HBA) polymers are well-established adsorbents for organophosphorus compounds and nitroaromatic explosives detection. In this paper, we report two HBA polymers for detection of styrene vapors based on 434-MHz surface acoustic wave (SAW) chemical sensors. These polymers, dubbed PLF and LSFA, are pendent hexafluoroisopropanol (HFIP)-group modified polysiloxanes, which were synthesized by one-step hydrosilylation reaction. Real-time response studies of these two sensors showed that they are highly sensitive to styrene vapors with excellent selectivity. After exposure to 5 mg/m3 styrene vapor, the frequency shifts of the PLF and LSFA sensors have increased by 6.3 kHz and 3.2 kHz, respectively. The polymers are 20-fold less sensitive to toluene than to styrene while they have comparable sensitivity to 1-butene. In situ infrared spectroscopy studies demonstrated that the polymer-styrene interaction is attributed to the OH/π hydrogen bond between HFIP groups of the polymers and the ethylene group of styrene molecules.

AB - Hydrogen-bond acidic (HBA) polymers are well-established adsorbents for organophosphorus compounds and nitroaromatic explosives detection. In this paper, we report two HBA polymers for detection of styrene vapors based on 434-MHz surface acoustic wave (SAW) chemical sensors. These polymers, dubbed PLF and LSFA, are pendent hexafluoroisopropanol (HFIP)-group modified polysiloxanes, which were synthesized by one-step hydrosilylation reaction. Real-time response studies of these two sensors showed that they are highly sensitive to styrene vapors with excellent selectivity. After exposure to 5 mg/m3 styrene vapor, the frequency shifts of the PLF and LSFA sensors have increased by 6.3 kHz and 3.2 kHz, respectively. The polymers are 20-fold less sensitive to toluene than to styrene while they have comparable sensitivity to 1-butene. In situ infrared spectroscopy studies demonstrated that the polymer-styrene interaction is attributed to the OH/π hydrogen bond between HFIP groups of the polymers and the ethylene group of styrene molecules.

KW - Hexafluoroisopropanol group

KW - Hydrogen-bond acidic polymer

KW - SAW sensor

KW - Styrene

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JO - Sensors and Actuators, B: Chemical

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ER -

Real-time detection of styrene using SAW sensors based on hexafluoroisopropanol group functionalized hydrogen-bond acidic polymers

Abstract

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Keywords

ASJC Scopus subject areas

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