The Physical Properties of Phthalazinone-based Sulfonated Poly(Ether Ketone Ketone)s PEM for Fuel Cell Application
A series of phthalazinone-based sulfonated poly (ether ketone ketone)s (SPPFEKKs) were synthesized by direct nucleophilic polycondensation reaction. The ion exchange capability (IEC), water uptake, swelling ratio, proton conductivity (σ ), water and oxidative stability of the membranes were also investigated. The results demonstrated that with increasing of the DS, the IEC, water uptake and swelling ratio increased, while the oxidative stability decreased. The SPPFEKKs had good hydrolytic stability and high proton conductivity. The proton conductivity of the SPPFEKKs increased with the DS and the temperature. At 95 ℃, the proton conductivity of SPPFEKK-120 (DS=1.2) was 1.0 ×10 -1 S/cm, which was similar to that of Nafion117.
phthalazinone proton exchange membrane water stability proton conductivity
PAN Haiyan ZHU Xiuling CHEN Jiwei JIAN Xigao
Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, P.R. China
国际会议
第四届中日化工学术研讨会(The 4th Joint China/Japan Chemical Engineering Symposium)(CJCES)
成都
英文
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）