Korean Membrane Journal

The Membrane Society of Korea (한국막학회)
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Semi-interpenetrated Polymer Network of Sulfonated Poly(Styrene-Divinylbenzene-Acrylonitrile) based on PVC Film for Polymer Electrolyte Membranes

  • Yun, Sung-Hyun (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Woo, Jung-Je (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Seo, Seok-Jun (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Park, Jung-Woo (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Oh, Se-Hun (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Moon, Seung-Hyeon (Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST))
  • Published : 2009.12.31
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Abstract

The sulfonated poly(styrene-divinylbenzene-acrylonitrile) (ST-DVB-AN) composite polymer electrolyte membrane based on the original PVC film was successfully synthesized to improve oxidative stability using semi-interpenetrated polymer network (semi-IPN). Weight gain ratio after copolymerization was enhanced by the DVB and AN contents, and the sulfonated membranes were characterized in terms of proton conductivity (k), ion exchange capacity (IEC), and water uptake ($W_U$). The effect of DVB content and AN addition were thoroughly investigated by comparing the resulted properties including oxidative stability. The obtained ST-DVB-AN composited semi-IPN membranes showed relatively high proton conductivity and IEC compared with Nafion117, and greatly improved oxidative stability of the synthesized membrane was obtained. This study demonstrated that a semi-interpenetrated sulfonated ST-DVB-AN composited membrane reinforced by PVC polymer network is a promising candidate as an inexpensive polymer electrolyte membrane for fuel cell applications.

Keywords

References

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