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Crosslinked metallo-polyelectrolytes with enhanced flexibility and dimensional stability for anion-exchange membranes

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Abstract

High-performing anion-exchange membranes (AEMs) have attracted tremendous interest for applications in emerging energy storage and conversion devices. Here we present a strategy for the synthesis of crosslinked metallo-polyelectrolytes as mechanically flexible, dimensionally stable and ionically conductive AEMs. The water uptake and swelling ratio are suppressed remarkably by introducing a crosslinked polymeric network. The as-prepared membranes also exhibit excellent thermal stability. The phase-separated morphology allows rapid ion-transport with low water uptake at various temperatures. Specifically, a conductivity of 53.3 mS cm−1 at 80 °C was achieved with an ion exchange capacity of 1.07 mmol g−1 and a low swelling ratio of 13%.

Graphical abstract: Crosslinked metallo-polyelectrolytes with enhanced flexibility and dimensional stability for anion-exchange membranes

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Article information


Submitted
24 May 2020
Accepted
16 Jun 2020
First published
22 Jun 2020

Polym. Chem., 2020, Advance Article
Article type
Communication

Crosslinked metallo-polyelectrolytes with enhanced flexibility and dimensional stability for anion-exchange membranes

T. Zhu and C. Tang, Polym. Chem., 2020, Advance Article , DOI: 10.1039/D0PY00757A

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