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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：用于质子交换膜燃料电池的长期耐用纳米和微结构聚合物共混膜的体面制备

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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：用不同程度的磺化的磺化聚（醚砜）（PES）的混合物用于制备用于燃料电池应用的膜。考虑到其容易的制剂和优异的性能，这种磺化PES混合物构成了诸如燃料电池应用的聚合物电解质的良好候选者。与具有一定程度的磺化的未混合的磺化聚合物膜相比，改善了混合物膜的长期耐久性。通过透射电子显微镜研究了聚合物共混物的纳米微米级形态。混合膜的长期稳定性与其形态有关，通过超小角度和小角度中子散射（分别的USAN和SAN）确认。混合膜包括更好定义的互连纳米尺寸离子相，其增强质子电导率和水流和微异质结构域，这可能是长期耐久性的原因。

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