Methanol permeability and properties of DMFC membranes based on sulfonated PEEK/PVDF blends
作者： J. Wootthikanokkhan , N. Seeponkai
DOI: 10.1002/APP.25151
关键词: Composite material 、 Materials science 、 Thermal stability 、 Peek 、 Membrane 、 Chemical engineering 、 Polymer blend 、 Thermogravimetric analysis 、 Methanol 、 Nafion 、 Direct methanol fuel cell
摘要: Proton exchange membranes for a direct methanol fuel cell were prepared by blending poly(vinyli- dene fluoride) (PVDF) with sulfonated poly(etheretherke- tone) (SPEEK). The effects of PVDF content on permeability in the blend investigated using diffusion and gas chromatography tech- nique. thermal resistance proton conductivity also determined gravimetric analysis (TGA) an impedance technique, respectively. It was found that per- meability decreased at expense conductivity. metha- nol values are much lower than Nafion 115, whereas con- ductivities comparable to Nafion. stability these above 2508C which is sufficiently high use DMFC. 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 5941-5947,
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