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Hydrolytic and alkaline stability of commercial and in-house anion exchange membranes
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DOI：10.1016/j.polymdegradstab.2026.112345.png)
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Abstract
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• Degradation of AEMs depends strongly on alkaline vswater environments. • Radical-mediated oxidation is proposed as dominant degradation pathway in hot deionized water. • PiperION and OrION degrade in water despite alkaline stability. • PECH-based membranes show opposite stability trends in KOH and water. • Stability windows are defined from IEC and conductivity losses.
Keywords:
Chemical aging
PiperION
Orion
Polyepichlorohydrin copolymer
Accelerated aging tests
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