Synthesis and Characterization of Sulfonated Poly (Arylene ether Sulfone) Multi-Block Copolymer for PEMFC Application
نویسندگان
چکیده
منابع مشابه
Polybenzimidazole block sulfonated poly(arylene ether sulfone) ionomers.
Novel ionomers based on polybenzimidazole block sulfonated poly(arylene ether sulfone) show excellent thermal properties. The ionic aggregation of sulfonic acid groups leads to well-developed phase separated morphology and thus high proton conductivity at wide humidity range, up to 65 mS cm(-1) at 90% relative humidity.
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Mass transport properties were investigated by means of the chronoamperometry method for a series of sulfonated poly~arylene ether sulfone! ~SPES! membranes and sulfonated polysulfide sulfone ~SPSS! polymers of various ion exchange capacities ~IEC! at a Pt ~microelectrode!/proton exchange membrane ~PEM! interface. The temperature and pressure dependence of oxygen transport parameters show simil...
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In this study, carbon nano-fibers (CNFs) were used to increase the compressive properties of poly(arylene ether sulfone) (PAES) foams. The polymer composite pellets were produced by melt blending the PAES resin with CNFs in a single screw extruder. The pellets were saturated and foamed with water and CO2 in a one-step batch process method. Dynamic mechanical thermal analysis (DMTA) was used to ...
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0014-3057/$ see front matter 2010 Published b doi:10.1016/j.eurpolymj.2010.03.005 * Corresponding author. Tel.: +82 2 958 5299; fax E-mail address: [email protected] (H.-J. Kim). Polymer blending is used to modify or improve the dimensional and thermal stability of any two different polymers or copolymers. In this study, both sulfonated polybenzimidazole homopolymer (MS-p-PBI 100) and sulfonat...
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Sulfoanted poly(ether ether ketone) membranes were prepared by the sulfonating agent sulfuric acid. These membranes were modifed by incorporating conducting polymer polypyrrole in order to increase the ionic conductivity and reduce the methanol transmission rate. The modifed composite membranes were then compared on the basis of ionic conductivity, methanol transmission...
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ژورنال
عنوان ژورنال: Transactions of the Korean hydrogen and new energy society
سال: 2012
ISSN: 1738-7264
DOI: 10.7316/khnes.2012.23.5.461