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- W2318956493 abstract "In this paper, we report a study of using cholesteric liquid crystals (CLCs) doped with dodecylamine for detecting aldehyde vapors. CLCs doped with dodecylamine show color change from red to yellow-green upon exposure to 300 ppmv pentyl aldehyde within 60 s. In contrast, no colorimetric response is observed when pure CLCs are used. Characterization by using FT-IR shows that the possible mechanism responsible for the colorimetric response is the formation of an imine bond between dodecylamine and pentyl aldehyde. A new C═N peak at 1670 cm–1 appears in the spectrum after the exposure to aldehyde vapors. The CLCs doped with dodecylamine show good selectivity for pentyl aldehyde; they do not respond to 200 ppmv pentyl alcohol, pentylamine, acetone, ethanol, and water vapor. This study demonstrates the potential applications of doped CLCs as low-cost and portable gas sensors." @default.
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- W2318956493 date "2011-06-14" @default.
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- W2318956493 title "Cholesteric Liquid Crystals Doped with Dodecylamine for Detecting Aldehyde Vapors" @default.
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- W2318956493 doi "https://doi.org/10.1021/ac200589k" @default.
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