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    Separation of VOCs Using Hexamethyldisiloxane Plasma-Polymerized Membranes

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    https://www.riss.kr/link?id=E807141

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    Composite membranes were prepared by plasma polymerization technique, and the membranes were applied for the separation of volatile organic vapors from air. A tubular type reactor system with an external coil was provided to initiate and maintain glow discharges. Hexamethyldisiloxane (HMDS) was used as a monomer for plasma polymerization. Through the plasma polymerization, poly(dimethylsiloxane)-like films were prepared. The FT-IR spectra of the plasma polymerized films were similar to that of poly(dimethylsiloxane) [PDMS]. The ratio of discharge power to monomer flow rate (W/F) in plasma polymerization affected the permeability of penetrants. In the plasma-polymerized membrane prepared under low W/F ratio, the permeability was mainly dependent of the condensability of VOCs, and the VOC showed high permselectivities over nitrogen. As the W/F ratio increases, molecular size effect became stronger and the selectivities decreased with increasing the W/F ratio.
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    Composite membranes were prepared by plasma polymerization technique, and the membranes were applied for the separation of volatile organic vapors from air. A tubular type reactor system with an external coil was provided to initiate and maintain glow...

    Composite membranes were prepared by plasma polymerization technique, and the membranes were applied for the separation of volatile organic vapors from air. A tubular type reactor system with an external coil was provided to initiate and maintain glow discharges. Hexamethyldisiloxane (HMDS) was used as a monomer for plasma polymerization. Through the plasma polymerization, poly(dimethylsiloxane)-like films were prepared. The FT-IR spectra of the plasma polymerized films were similar to that of poly(dimethylsiloxane) [PDMS]. The ratio of discharge power to monomer flow rate (W/F) in plasma polymerization affected the permeability of penetrants. In the plasma-polymerized membrane prepared under low W/F ratio, the permeability was mainly dependent of the condensability of VOCs, and the VOC showed high permselectivities over nitrogen. As the W/F ratio increases, molecular size effect became stronger and the selectivities decreased with increasing the W/F ratio.

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    목차 (Table of Contents)

    • Ⅰ. Introduction = 2575
    • Ⅱ. EXPERIMENTAL = 2576
    • Ⅲ. RESULTS AND DISCUSSIONS = 2577
    • Ⅳ. CONCLUSION = 2579
    • REFERENCES= 2579
    • Ⅰ. Introduction = 2575
    • Ⅱ. EXPERIMENTAL = 2576
    • Ⅲ. RESULTS AND DISCUSSIONS = 2577
    • Ⅳ. CONCLUSION = 2579
    • REFERENCES= 2579
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