| 초록 |
Hydrogen chloride (HCl) gas is a strong acid which is widely used in industry. Since it is very toxic to the human body, there have been great interest in detecting for HCl gas. Especially, the HCl sensor based on quartz crystal microbalance (QCM) which measures a mass variation by measuring the change in frequency of a quartz crystal resonator have attracted interest because of their high sensitivity. Herein, we studied on the QCM-based HCl sensors coated with the UV-cured arylamide polymers bearing different functional groups. The sensor devices were simply prepared by coating acrylamide monomers with photo-initiator and crosslinker on quartz resonators, then UV-curing. The sensors showed high sensitivity to HCl gas enough to sense at a sub-ppm, and showed the different adsorption/desorption behavior depending on the functional group of polymers used. In addition, it was possible to increase the sensitivity more than twice through micro-patterning by soft lithography with PDMS. |
