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Synthesis and characterization of anion-exchange membranes based on hydrogenated poly(norbornene)

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Abstract

Trimethylammonium-containing (TMA) polynorbornene is synthesized via ring-opening metathesis polymerization for study as an anion exchange membrane (AEM) in solid state alkaline fuel cells. The AEMs in this work are designed to incorporate flexible tethers between the TMA and polymer backbone, methyl groups at the β position, and to be semicrystalline, with the goals of high OH conductivity, good electrochemical stability in high pH environments, and robust mechanical properties when in the membrane form. The resulting materials are found to have high conductivities, but are mechanically weak due to an overall lack of crystalline domains. Electrochemical stability appears dependent on the environment in which lifetime is measured, suggesting that the hydration state of the polymer has a substantial influence on the result.

Graphical abstract: Synthesis and characterization of anion-exchange membranes based on hydrogenated poly(norbornene)

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Publication details

The article was received on 28 Jun 2017, accepted on 22 Aug 2017 and first published on 22 Aug 2017


Article type: Paper
DOI: 10.1039/C7PY01084B
Citation: Polym. Chem., 2017, Advance Article
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    Synthesis and characterization of anion-exchange membranes based on hydrogenated poly(norbornene)

    S. C. Price, X. Ren, A. M. Savage and F. L. Beyer, Polym. Chem., 2017, Advance Article , DOI: 10.1039/C7PY01084B

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