Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 116, Issue 1, Pages 562-567Publisher
WILEY-BLACKWELL
DOI: 10.1002/app.31506
Keywords
synthesis; gas sensors; organic vapor; quartz crystal microbalance
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Funding
- National Science Foundation of China (NSFC) [60736005, 60876051, 60425101-1]
- SRF [GGRYJJ08-05]
- 863 Program [2007AA03Z422]
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Poly-(bistriethylphosphine)-platinum-diethynylbenzene (Pt-DEB) was synthesized by dehydrohalogenation reaction. X-ray photoelectron spectroscopy (XPS), FTIR, and H-1-NMR spectra were used to identify the formation of Pt-DEB target material. Sensitive properties of Pt-DEB-based quartz crystal microbalance (QCM) sensor to various organic vapors such as trichloromethane, tetrahydrofuran, acetone, isopropyl alcohol, ethanol, and methanol have been studied. The results show that Pt-DEB has good reversibility, reproducibility, and linear sensitivity to organic vapors at room temperature. The sensitivity of Pt-DEB (dissolved in CHCl3) toward CHCl3 is clearly higher than that toward other analytes, and a larger molecular weight of alcohol has a higher sensitivity response. The Pt-DEB-based QCM gas sensor shows low detection limits ranging from 1.0 to 3.56 ppm for the organic vapors and stable performance during a period of 30 days. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116: 562-567, 2010
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