| Project/Area Number |
06650879
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
反応・分離工学
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| Research Institution | Shizuoka University |
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Principal Investigator |
SUDOH Masao Shizuoka University, Fuculty of Engineering, Professor, 工学部, 教授 (80154615)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1995: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1994: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Plasma Polymerization / Graft Polymerization / Fuel Cell / Proton-exchange Membrane / Ion-exchange Membrane / Poly (aerylic) acid Membrane / Poly (sulfonate) Membrane |
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| Research Abstract |
The membranes having acrylic acid or sulfonate fixed charges were prepared by plasma polymerization. Acrylic acid grafted membranes were prepared by gas phase polymerization in a plasma reactor with outer electrodes and a conjugate liquid vessel, followed by post-polymerization in the liquid phase on the microporous flim of polypropylene (CG) or polyethylene (HP) as a base film. Fluorosulfonate charged-membranes were prepared by gas phase polymerization of both surfaces of the base film in a bell-jar type plasma reactor with inner electrodes, using trifluoromethane sulfonate and hexafluoropropylene. The effects of the operational conditions of plasma pressure ; the RF power and the polymerization period, on the properties of a charged-membrane of the grafting degree ; the ion-exchange capacity, the membrane conductivity and cation transference number, were examined experimentally. Acrylic acid-grafted membranes had high water content, and showed the high membrane conductivity. The transference number of cations of the grafted membrane on the CG film was higher than that of the membrane on the HP film. Fluoro-sulfonate grafted membranes showed the lower resistivity than Nofion 117 membrane, and had the ion-exchange capacity competitive to Nafion and the high transference number of cations.
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