title: Highly Water Resistant Anion Exchange Membrane for Fuel Cells.
abstract: For anion exchange membranes (AEMs), achieving efficient hydroxide conductivity without excessive hydrophilicity presents a challenge. Hence, new strategies for constructing mechanically strengthened and hydroxide conductive (especially at controlled humidity) membranes are critical for developing better AEMs. Macromolecular modification involving ylide chemistry (Wittig reaction) for the fabrication of novel AEMs with an interpenetrating polymer network structure is reported. The macromolecular modification is cost effective, facile, and based on a one-pot synthesis. AEM water uptake is reduced to 3.6 wt% and a high hydroxide conductivity (69.7 mS cm(-1) , 90 °C) is achieved simultaneously. More importantly, the membrane exhibits similar tensile strength (>35 MPa) and comparable flexibility in both dry and wet states. These AEMs could find further applications within anion exchange membrane fuel cells with low humidity or photoelectric assemblies.
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei, 230026, China.
authors.forename: Zhengjin
authors.initials: Z
authors.lastname: Yang
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei, 230026, China.
authors.forename: Jianqiu
authors.initials: J
authors.lastname: Hou
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei, 230026, China.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Wang
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei, 230026, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Wu
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei, 230026, China.
authors.forename: Tongwen
authors.initials: T
authors.lastname: Xu
mesh_terms: D000838:Anions / Q000737:chemistry; D001674:Bioelectric Energy Sources; D004553:Electric Conductivity; D004566:Electrodes; D006878:Hydroxides / Q000737:chemistry; D007474:Ion Exchange; D008567:Membranes, Artificial; D010647:Phenyl Ethers / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D013718:Tensile Strength; D014867:Water / Q000737:chemistry
chemical_list: D000838:Anions; D006878:Hydroxides; D008567:Membranes, Artificial; D010647:Phenyl Ethers; D011108:Polymers; C488462:poly(2,6-dimethyl-1,4-phenylene oxide); D014867:Water; C031356:hydroxide ion
keywords: PPOs; anion exchange membranes; fuel cells; hydroxide conductivity; water resistant