Preparation of long-lifetime gas recognition films by plasma polymerization technique

Gas sorption and desorption properties of plasma-polymerized acrylic acid film (PPAAF) and cast poly(acrylic acid) film (CPAAF) were determined by QCM technique. The gas sorption properties of PPAAF are almost the same as those of CPAAF. PPAAF showed an excellent stability in repeated usage of the gas sorption and desorption cycles.