Anion-conducting ionomers: Study of type of functionalizing amine and macromolecular cross-linking
作者： M.L. Di Vona , R. Narducci , L. Pasquini , K. Pelzer , P. Knauth
DOI: 10.1016/J.IJHYDENE.2014.06.166
关键词:
摘要: Abstract Anion exchange membranes (AEM) were prepared by chloromethylation and amination of polysulfone (PSU) polyphenylsulfone (PPSU). The reaction pathways studied 1H 13C NMR spectroscopy ab-initio calculations. Various amines used, including trimethylamine (TMA), 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) 1,4-diazabicyclo[2.2.2]octane (DABCO) to study the influence molecular volume stabilizing effect a delocalization positive ammonium ion charge on second nitrogen. Furthermore, solvothermal cross-linking stability AEM was investigated. alkaline stability, measured after treatment in 2 M KOH at 60 °C during 168 h, is improved DBN polymer reticulation. ionic conductivity water reaches values above 10 mS/cm with DABCO. hydroxide mobility depends linearly hydration number.
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