Synthesis and basic properties of proton exchange membranes based on phosphotungstic acid/silica and sulfonated polysulfone
Membranes based on sulfonated polysulfone (SPSF), phosphotungstic acid (PWA) and nano-silica (SiO2) was prepared. The synthesized SPSF with a degree of sulfonation (DS) of 69.75% was used for preparing all the composites. The analyses of proton conductivity and mechanical properties of the membranes revealed that PWA and SiO2 produced a beneficial effect on proton conduction of the membranes. The membrane with 20 wt.% of SiO2 and 13 wt.% of PWA is mechanically stable and has proton conductivity of 0.15 S cm-1 at 90℃ and 100% relative humidity. Thermogravimetric analysis (TGA) showed the membranes were thermally stable up to about 280℃. PWA and SiO2 doped SPSF is a promising material for proton exchange membrane according to the obtained results.
LI Weidonga ZHAO Jiongxin XU Hong MAO Zhiping
Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Mater
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
670-672
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）