Abstract Perfluorinated ionomers (S-PFSO 2 NH - GCI-OH) and their anion exchange membranes (AEMs) were successfully synthesized from short side-chain perfluorosulfonamide polymer for the first time. S-PFSO 2 NH-GCI-OH ionomers well dissolved in many solvents, especially in low-boiling point solvents and formed a transparent solution. The wet membrane of S-PFSO 2 NH-GCI-OH displayed a well defined nano-phase separated structure with the ionic cluster dimension of 4–5 nm. S-PFSO 2 NH-GCI-OH membrane exhibited good hydroxide conductivity of 102 mS cm −1 at 80 °C and excellent dimensional stability in water. Moreover, the membrane maintained 86.1% hydroxide conductivity and 87.5% IEC value after immersion in 8 M KOH at 80 °C over fifteen days. Alkaline membrane fuel cell using the perfluorinated ionomer as catalyst binder on the perfluorinated membrane exhibits power density of 138 mW cm −2 . This new synthetic strategy may be useful in designing more perfluorinated AEMs electrochemical devices with high comprehensive performance.

中文翻译：

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全氟离聚物及其阴离子交换膜的合成

摘要 首次以短侧链全氟磺酰胺聚合物为原料，成功合成了全氟离聚物（S-PFSO 2 NH - GCI-OH）及其阴离子交换膜（AEM）。S-PFSO 2 NH-GCI-OH离聚物能很好地溶解在许多溶剂中，尤其是在低沸点溶剂中并形成透明溶液。S-PFSO 2 NH-GCI-OH 的湿膜显示出明确的纳米相分离结构，离子簇尺寸为 4-5 nm。S-PFSO 2 NH-GCI-OH 膜在 80 °C 下表现出 102 mS cm -1 的良好氢氧化物电导率，并且在水中具有出色的尺寸稳定性。此外，该膜在 80 °C 下浸入 8 M KOH 15 天后仍保持 86.1% 的氢氧化物电导率和 87.5% 的 IEC 值。使用全氟化离聚物作为全氟化膜上的催化剂粘合剂的碱性膜燃料电池表现出138mW cm -2 的功率密度。这种新的合成策略可能有助于设计具有高综合性能的更多全氟化 AEM 电化学装置。