Proton-conducting polysilsesquioxane oligomers with core–shell structures consisting of hydrophilic silica-rich cores surrounded by an organic layer with sulfonic and phosphonic acid groups were synthesized. They were crosslinked by mixing with phosphoric acid and aluminum ions to form a hydrophilic Al–O–P framework. The resulting polymers were clear, uniform, flexible, and exhibited a high proton conductivity above 100 °C in non-humidified low-humidity air (∼22 mS cm⁻¹ at 120 °C and ∼1%RH) because of their high sulfonic acid concentration and high water retention capability.

中文翻译：

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用于低湿度的快速质子导体：具有 Al-O-P 交联的亲水性磺化和膦化聚倍半硅氧烷

合成了具有核壳结构的质子传导聚倍半硅氧烷低聚物，该结构由富含磺酸和膦酸基团的有机层包围的亲水性富含二氧化硅的核组成。它们通过与磷酸和铝离子混合而交联，形成亲水性的 Al-O-P 骨架。所得聚合物是透明、均匀、柔韧的，并且由于其高磺酸基，在非加湿低湿空气中（120°C和~1%RH下~22 mS cm ^-1 ）在100°C以上表现出高质子电导率酸浓度和高保水能力。