Cross-linked anion exchange membranes with hydrophobic side-chains for anion separation

2019 ◽  
Vol 581 ◽  
pp. 150-157 ◽  
Author(s):  
Chuanrun Li ◽  
Guanghan Wang ◽  
Dongbo Yu ◽  
Fangmeng Sheng ◽  
Muhmmad Aamir Shehzad ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Side Chains ◽  
Anion Exchange Membranes ◽  
Anion Separation

scholarly journals Anion-exchange membranes with polycationic alkyl side chains attached via spacer units

2016 ◽  
Vol 4 (43) ◽  
pp. 17138-17153 ◽  
Author(s):  
Hai-Son Dang ◽  
Patric Jannasch
Keyword(s):  
Anion Exchange ◽  
Ion Conductivity ◽  
Side Chains ◽  
Anion Exchange Membranes ◽  
Hydroxide Ion ◽  
Alkaline Stability ◽  
Phenylene Oxide ◽  
Alkyl Side Chains

Poly(phenylene oxide)s carrying pendant polycationic alkyl side chains with a suitable configuration show high hydroxide ion conductivity and excellent alkaline stability.

scholarly journals A Novel Anion Exchange Membrane for Bisulfite Anion Separation by Grafting a Quaternized Moiety through BPPO via Thermal-Induced Phase Separation

2020 ◽  
Vol 21 (16) ◽  
pp. 5782
Author(s):  
Md Mofasserul Alam ◽  
Yaoming Wang ◽  
Chenxiao Jiang ◽  
Tingting Xu ◽  
Yahua Liu ◽  
...  
Keyword(s):  
Phase Separation ◽  
Anion Exchange ◽  
Membrane Surface ◽  
Separation Performance ◽  
Anion Exchange Membranes ◽  
Transmission Electron ◽  
Alkali Medium ◽  
Core Elements ◽  
Anion Separation ◽  
Exchange Membrane

Ion-exchange membranes are the core elements for an electrodialysis (ED) separation process. Phase inversion is an effective method, particularly for commercial membrane production. It introduces two different mechanisms, i.e., thermal induced phase separation (TIPS) and diffusion induced phase separation (DIPS). In this study, anion exchange membranes (AEMs) were prepared by grafting a quaternized moiety (QM,2-[dimethylaminomethyl]naphthalen-1-ol) through brominated poly (2,6-dimethyl-1,4-phenylene oxide) (BPPO) via the TIPS method. Those membranes were applied for selective bisulfite (HSO3−) anion separation using ED. The membrane surface morphology was characterized by SEM, and the compositions were magnified using a high-resolution transmission electron microscope (HRTEM). Notably, the membranes showed excellent substance stability in an alkali medium and in grafting tests performed in a QM-soluble solvent. The ED experiment indicated that the as-prepared membrane exhibited better HSO3− separation performance than the state-of-the-art commercial Neosepta AMX (ASTOM, Japan) membrane.

Clustered multi-imidazolium side chains functionalized alkaline anion exchange membranes for fuel cells

2017 ◽  
Vol 541 ◽  
pp. 214-223 ◽  
Author(s):  
Dong Guo ◽  
Chen Xiao Lin ◽  
En Ning Hu ◽  
Lin Shi ◽  
Faizal Soyekwo ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Side Chains ◽  
Anion Exchange Membranes

Poly(fluorenyl ether ketone)s with densely distributed multi-cationic side chains for anion exchange membranes

2022 ◽  
Vol 277 ◽  
pp. 125490
Author(s):  
Xinxin Hao ◽  
Zhen Zhou ◽  
Yu Chen ◽  
Lei Xiong ◽  
Dongyang Chen
Keyword(s):  
Anion Exchange ◽  
Side Chains ◽  
Anion Exchange Membranes ◽  
Ether Ketone
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