2024
DOI: 10.1021/acsapm.4c02929
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Sulfonated Poly(fluorene alkylene)s Containing Dual Hydrophilic and Hydrophobic Side Chains for High-Performance Proton Exchange Membranes

Yufeng Liang,
Ziqiang Liu,
Kejing Lin
et al.

Abstract: Proton exchange membranes (PEMs) based on aromatic hydrocarbon polymers are considered promising alternatives to Nafion membranes. However, insufficient proton conductivity and stability hinder practical applications of hydrocarbon PEMs. Herein, we propose a series of aryl ether-free PEMs based on sulfonated poly(fluorene alkylene)s (SHF-HHF-x) by simultaneously incorporating dual hydrophilic and hydrophobic side chains. Benefiting from the featured side-chain structure, a well-defined microphase separation wa… Show more

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