Journal ArticleDOI
Ionic crosslinking of imidazolium functionalized poly(aryl ether ketone) by sulfonated poly(ether ether ketone) for anion exchange membranes.
Yixin Xu,Niya Ye,Dengji Zhang,Jingshuai Yang,Ronghuan He +4 more
- Vol. 497, pp 333-342
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TLDR
The degradation of the imidazolium functional groups of the AEMs under the attack of hydroxide ions was evidenced by FT-IR analysis and the hydrophile-lipophile balance of the polymer membranes was calculated and proposed to better understand the correlation between structures and properties of theAbstract:
Two N3-substituted imidazoles 1,2-dimethylimidazole and 1-butyl-2-methylimidazole were chosen to functionalize poly(aryl ether ketone), respectively. The generated imidazolium cations could electrostatically react with sulfonate ions of the sulfonated poly(ether ether ketone) forming the ionic crosslinking structure of the membranes. The changes in crosslinking degree and the alkyl chain-length on N3 site of the imidazoliums could highly affect the properties of the anion exchange membranes (AEMs). The AEMs functionalized by 1-butyl-2-methylimidazole exhibited superior properties compared to those functionalized by 1,2-dimethylimidazole according to the tolerance tests of the AEMs towards hot alkaline solutions. After exposed to 1M KOH at 80°C for 200h, the 1-butyl-2-methylimidazole modified AEMs maintained the ion exchange capacity of above 85%, the conductivity of about 70%, and the tensile stress at break of around 80%, respectively. The hydrophile-lipophile balance of the polymer membranes was calculated and proposed to better understand the correlation between structures and properties of the AEMs. The degradation of the imidazolium functional groups of the AEMs under the attack of hydroxide ions was evidenced by FT-IR analysis.read more
Citations
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Journal ArticleDOI
A highly durable long side-chain polybenzimidazole anion exchange membrane for AEMFC
TL;DR: In this paper, a series of long side-chain polybenzimidazole AEMs with high conductivity and chemical stability has been fabricated, and the chemical structure of the PBI, side chain (Sc) and N-PBI was characterized by FT-IR and 1 H NMR.
Journal ArticleDOI
Multi-cation crosslinked anion exchange membranes from microporous Tröger's base copolymers
Chuan Hu,Qiu Gen Zhang,Chen Xiao Lin,Zhen Lin,Ling Li,Faizal Soyekwo,Ai Mei Zhu,Qing Lin Liu +7 more
TL;DR: In this paper, a copolymer of intrinsic microporosity (PIM) for high performance anion exchange membranes (AEMs) has been proposed for wide application in energy and separation fields.
Journal ArticleDOI
Imidazolium-functionalized poly (arylene ether ketone) cross-linked anion exchange membranes
TL;DR: In this article, a series of phenolphthalein-based poly (arylene ether ketone) (PEK) copolymer is synthesized to prepare anion exchange membranes (AEMs).
Journal ArticleDOI
Poly(vinyl benzyl methylpyrrolidinium) hydroxide derived anion exchange membranes for water electrolysis
Huanhuan Li,Mikkel Rykær Kraglund,Alexander Kappel Reumert,Xiaorui Ren,David Aili,Jingshuai Yang +5 more
TL;DR: In this paper, a methylpyrrolidinium cation functionalized poly(vinyl benzyl chloride) (PVBC-MPy) membrane with high alkaline stability and ion conductivity simultaneously was synthesized through a facile, gentle and non-carcinogenic chemical method.
Journal ArticleDOI
Anion exchange membranes with dense N-spirocyclic cations as side-chain
TL;DR: In this paper, the side-chain of poly(ether sulfone) (PES) is tethered with dense N-spirocyclic cations (NS) as the side chain to obtain high performance.
References
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Jin Ran,Liang Wu,Yubin He,Zhengjin Yang,Yaoming Wang,Chenxiao Jiang,Liang Ge,Erigene Bakangura,Tongwen Xu +8 more
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