화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.23, 285-289, March, 2015
DOI10.1016/j.jiec.2014.08.030  Export Citation
Sulfonated polySEPS/hydrophilic-SiO2 composite membranes for polymer electrolyte membranes (PEMs)
Suk-Yong Jang, and Sien-Ho Han†
  • Department of Chem. Eng. & Biotech., Korea Polytechnic University, 237 Sangidaehak-Ro, 2121 Jeongwang-Dong, Siheung-Si, Gyeonggi-Do 429-793, Republic of Korea
E-mail:
Sulfonated polystyrene-block-poly(ethyl-ran-propylene)-block-polystyrene (S-polySEPS)/hydrophilic-SiO2 composite membranes were prepared by direct-mixing hydrophilic-SiO2 particles with S-polySEPS in the blending solvent (THF/DCE/IPA). Despite the hydrophilic-fillers, the S-polySEPS/hydrophilic-SiO2 composite membranes showed that the hydrophilic-SiO2 particles were very-well dispersed within the S-polySEPS matrix. Most of the prepared S-polySEPS/hydrophilic-SiO2 composite membranes had higher proton conductivity and water uptake than Nafion®117. In particular, S-polySEPS/hydrophilic-SiO2 2 wt% membrane (1.50 × 10?1 S/cm) showed much higher proton conductivity than that of the Nafion®117 (9.8 × 10?2 S/cm) at 90 °C. The current density was 1090 mA cm?2 at 0.7 V.
Keywords:PolySEPS;Hydrophilic;Nanocomposite;PEMs;Sulfonation
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