Crosslinking of comb-shaped polymer anion exchange membranes via thiol–ene click chemistry

2016 ◽  
Vol 7 (14) ◽  
pp. 2464-2475 ◽  
Author(s):  
Liang Zhu ◽  
Tawanda J. Zimudzi ◽  
Nanwen Li ◽  
Jing Pan ◽  
Bencai Lin ◽  
...  

To produce anion conductive and durable polymer electrolytes for alkaline fuel cell applications, a series of cross-linked quaternary ammonium functionalized poly(2,6-dimethyl-1,4-phenylene oxide)s with mass-based ion exchange capacities (IEC) ranging from 1.80 to 2.55 mmol g−1 were synthesized via thiol–ene click chemistry.

2018 ◽  
Vol 11 (2) ◽  
pp. 435-446 ◽  
Author(s):  
Lei Liu ◽  
Xiaomeng Chu ◽  
Jiayou Liao ◽  
Yingda Huang ◽  
Ying Li ◽  
...  

A complete investigation of poly(2,6-dimethyl-1,4-phenylene) AEMs with different quaternary ammonium groups is provided comparing the properties and fuel cell performance.


Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 454
Author(s):  
Aruna Kumar Mohanty ◽  
Young-eun Song ◽  
Jung-rae Kim ◽  
Nowon Kim ◽  
Hyun-jong Paik

A class of phenolphthalein anilide (PA)-based poly(ether sulfone) multiblock copolymers containing pendant quaternary ammonium (QA) and imidazolium (IM) groups were synthesized and evaluated as anion exchange membrane (AEM) materials. The AEMs were flexible and mechanically strong with good thermal stability. The ionomeric multiblock copolymer AEMs exhibited well-defined hydrophobic/hydrophilic phase-separated morphology in small-angle X-ray scattering and atomic force microscopy. The distinct nanophase separated membrane morphology in the AEMs resulted in higher conductivity (IECw = 1.3–1.5 mequiv./g, σ(OH−) = 30–38 mS/cm at 20 °C), lower water uptake and swelling. Finally, the membranes were compared in terms of microbial fuel cell performances with the commercial cation and anion exchange membranes. The membranes showed a maximum power density of ~310 mW/m2 (at 0.82 A/m2); 1.7 and 2.8 times higher than the Nafion 117 and FAB-PK-130 membranes, respectively. These results demonstrated that the synthesized AEMs were superior to Nafion 117 and FAB-PK-130 membranes.


2019 ◽  
Vol 3 (8) ◽  
pp. 1916-1928 ◽  
Author(s):  
Junpei Miyake ◽  
Kenji Miyatake

The progress, potential and remaining challenges of state-of-the-art anion exchange membranes (AEMs), in particular, our quaternized poly(arylene perfluoroalkylene)s (QPAFs), for alkaline fuel cell applications, are overviewed and discussed.


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