Abstract
A series of anion exchange membranes (AEMs) based on quaternary poly(ether sulfone)s (QPES) have been successfully prepared through aromatic nucleophilic polymerization, chloromethylation, quaternization and alkalization for alkaline direct methanol fuel cell (ADMFC) applications. The influence of quaternization reagents on properties of the prepared QPES membranes has been discussed in details, including ion exchange capacity (IEC), size change and ionic conductivity. The results indicated that the selection of quaternization reagent is very important. At similar IEC level, the membranes using N,N,N’,N’-tetramethyl-1,3-propanediamine as the quaternization reagent showed relatively high dimensional stability and ionic conductivity.
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