Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA.
J Am Chem Soc. 2012 Nov 7;134(44):18161-4. doi: 10.1021/ja307466s. Epub 2012 Oct 26.
A tetrakis(dialkylamino)phosphonium cation was evaluated as a functional group for alkaline anion exchange membranes (AAEMs). The base stability of P(N(Me)Cy)(4) was directly compared to that of BnNMe(3) in 1 M NaOD/CD(3)OD. The high base stability of P(N(Me)Cy)(4) relative to BnNMe(3) inspired the preparation of AAEM materials composed of phosphonium units attached to polyethylene. The AAEMs (hydroxide conductivity of 22 ± 1 mS cm(-1) at 22 °C) were prepared using ring-opening metathesis polymerization, and their stabilities were evaluated in 15 M KOH at 22 °C and in 1 M KOH at 80 °C.
一种四（二烷基氨基）鏻阳离子被评估为碱性阴离子交换膜（AAEMs）的官能团。[P（N（Me）Cy）（4）] +的碱性稳定性与[BnNMe（3）] +在 1 M NaOD / CD（3）OD 中的碱性稳定性直接进行了比较。[P（N（Me）Cy）（4）] +相对于[BnNMe（3）] +的高碱性稳定性激发了制备由连接到聚乙烯的鏻单元组成的 AAEM 材料。AAEMs（在 22°C 下的氢氧化物电导率为 22 ± 1 mS cm-1）是通过开环复分解聚合制备的，并在 22°C 的 15 M KOH 和 80°C 的 1 M KOH 中评估了它们的稳定性。
