Development of Organic Gas Sensor Using Quartz Crystal Microbalance Coated with Plasma-polymerized Films
Hidenobu Aizawa, Shin-ichi Kusakari, Kazunori Yamada, Kazutoshi Noda, Hiroshi Habe
Abstract
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Hidenobu Aizawa, Shin-ichi Kusakari, Kazunori Yamada, Kazutoshi Noda, Hiroshi Habe
Abstract
Open-access reader
organic compound (VOC) In this study, we developed a gas detection membrane that can selectively sense volatile organic compounds used in the industry and research.4-(Chloromethyl) styrene (CMS) and 4-vinylbenzoic acid (VBA) films were coated on a quartz crystal microbalance (QCM) using plasma polymerization.The response sensitivity (RS) to each organic gas in the plasmapolymerized (pp) film was calculated and evaluated from the amount of frequency shift in the organic gas adsorption/desorption of the QCM.In pp-CMS coated on the QCM, dichloromethane was adsorbed more than in other pp-films, possibly because pp-CMS had a higher affinity with chloro groups of dichloromethane.By contrast, pp-VBA had a high RS to alcohol-based solvents containing hydroxy groups, especially methanol.From the results, the gas selectivity of the pp films was suggested to depend on their functional groups.
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organic compound (VOC) In this study, we developed a gas detection membrane that can selectively sense volatile organic compounds used in the industry and research.4-(Chloromethyl) styrene (CMS) and 4-vinylbenzoic acid (VBA) films were coated on a quartz crystal microbalance (QCM) using plasma polymerization.The response sensitivity (RS) to each organic gas in the plasmapolymerized (pp) film was calculated and evaluated from the amount of frequency shift in the organic gas adsorption/desorption of the QCM.In pp-CMS coated on the QCM, dichloromethane was adsorbed more than in other pp-films, possibly because pp-CMS had a higher affinity with chloro groups of dichloromethane.By contrast, pp-VBA had a high RS to alcohol-based solvents containing hydroxy groups, especially methanol.From the results, the gas selectivity of the pp films was suggested to depend on their functional groups.
Key concepts: Quartz crystal microbalance, Plasma polymerization, Polymerization, Quartz, Plasma, Chemical engineering, Materials science, Chemistry