2024
DOI: 10.1021/acs.macromol.3c02123
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Proton-Conducting Membranes from Polyphenylenes Containing Armstrong’s Acid

Andy Künzel-Tenner,
Christoph Kirsch,
Oleksandr Dolynchuk
et al.

Abstract: This study demonstrates the use of 1,5-naphthalenedisulfonic acid as a suitable building block for the efficient and economic preparation of alternating sulfonated polyphenylenes with high ion-exchange capacity (IEC) via Suzuki polycondensation. Key to large molar masses is the use of an all-meta-terphenyl comonomer instead of m-phenyl, the latter giving low molar masses and brittle materials. A protection/deprotection strategy for base-stable neopentyl sulfonates is successfully implemented to improve the sol… Show more

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