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Studies on the Gas Permeation Behaviors Using the Surface Fluorinated Poly(phenylene oxide) Membranes  

Lee, Bo-Sung (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University)
Kim, Dae-Hoon (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University)
Rhim, Ji-Won (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University)
Publication Information
Membrane Journal / v.20, no.2, 2010 , pp. 106-112 More about this Journal
Abstract
This study deals with the surface fluorination of poly(phenylene oxide) (PPO) with the direct contact of 100 ppm fluorine gas. To characterize the surface fluorinated membranes, the contac angle measurement, X-ray photoelectron microscopy analysis and the gas permeation experiments were performed. As the fluorination time increases, the hydrophobicity of membrane surfaces is increased by the surface characterization. In general, as expected, the overall gas permeability was reduced. Typically, the permeability reduction of 33% for nitrogen, 23% for oxygen and 3% for carbon dioxide were observed when the membranes were exposed in 100 ppm environment for 60 min., meanwhile the selectivity was increased from 3.92 to 4.47 for $O_2/N_2$ and 18.09 to 25.4 for $O_2/N_2$, respectively.
Keywords
gas permeation; poly(phenylene oxide); Fluorination; gas transport properties;
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Times Cited By KSCI : 2  (Citation Analysis)
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