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首页> 外文期刊>RSC Advances >Facile preparation of a long-term durable nano- and micro-structured polymer blend membrane for a proton exchange membrane fuel cell
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Facile preparation of a long-term durable nano- and micro-structured polymer blend membrane for a proton exchange membrane fuel cell

机译：轻松制备质子交换膜燃料电池的长期耐用的纳米和微结构聚合物共混膜

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The blend of sulfonated poly(ether sulfone)s (PESs) with different degrees of sulfonation is used to prepare a membrane for fuel cell applications. Considering their facile preparation and excellent performance, such sulfonated PES blends constitute good candidates as polymer electrolyte for fuel cell applications. The long-term durability of the blend membrane is improved compared to unblended sulfonated polymer membranes with one degree of sulfonation. The nano-to-micron scale morphology of the polymer blend is investigated by transmission electron microscopy. The long-term stability of the blend membrane is related to its morphology, as confirmed by ultra small angle and small angle neutron scattering (USANS and SANS, respectively) analyses. The blend membrane comprises better-defined interconnected nano-sized ionic phases that enhance proton conductivity and water flow and micro heterogeneous domains, which could be reasons for the long-term durability.
机译：具有不同磺化度的磺化聚醚醚（PESs）共混物可用于制备用于燃料电池的膜。考虑到它们的制备简便和优异的性能，此类磺化的PES共混物可作为燃料电池应用中的聚合物电解质很好的候选者。与具有一种磺化度的未共混的磺化聚合物膜相比，共混膜的长期耐久性得到了改善。通过透射电子显微镜研究了聚合物共混物的纳米级至微米级形貌。共混膜的长期稳定性与其形态有关，这已通过超小角和小角中子散射（分别为USANS和SANS）分析得到证实。共混膜包含更好定义的相互连接的纳米级离子相，可增强质子传导性和水流以及微非均质域，这可能是长期耐久性的原因。

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