Highly conductive and stable anion‐exchange membranes based on crosslinked poly(arylene ether sulfone)‐ block ‐poly(phenylene oxide) Networks

2020 ◽  
Vol 58 (3) ◽  
pp. 391-401
Author(s):  
Jinwu Peng ◽  
Zhenchao Liu ◽  
Minhui Liang ◽  
Peng Wang ◽  
Wei Hu ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Arylene Ether ◽  
Phenylene Oxide ◽  
Stable Anion

scholarly journals Enhanced Hydroxide Conductivity and Dimensional Stability with Blended Membranes Containing Hyperbranched PAES/Linear PPO as Anion Exchange Membranes

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3011
Author(s):  
Sang Hee Kim ◽  
Kyu Ha Lee ◽  
Ji Young Chu ◽  
Ae Rhan Kim ◽  
Dong Jin Yoo
Keyword(s):  
Anion Exchange ◽  
Functional Group ◽  
Anion Exchange Membranes ◽  
Channel Formation ◽  
Arylene Ether ◽  
Phenylene Oxide ◽  
Afm Analysis ◽  
Very High ◽  
Excessive Water ◽  
Hyperbranched Structure

A series of novel blended anion exchange membranes (AEMs) were prepared with hyperbranched brominated poly(arylene ether sulfone) (Br-HB-PAES) and linear chloromethylated poly(phenylene oxide) (CM-PPO). The as-prepared blended membranes were fabricated with different weight ratios of Br-HB-PAES to CM-PPO, and the quaternization reaction for introducing the ionic functional group was performed by triethylamine. The Q-PAES/PPO-XY (quaternized-PAES/PPO-XY) blended membranes promoted the ion channel formation as the strong hydrogen bonds interconnecting the two polymers were maintained, and showed an improved hydroxide conductivity with excellent thermal behavior. In particular, the Q-PAES/PPO-55 membrane showed a very high hydroxide ion conductivity (90.9 mS cm−1) compared to the pristine Q-HB-PAES membrane (32.8 mS cm−1), a result supported by the morphology of the membrane as determined by the AFM analysis. In addition, the rigid hyperbranched structure showed a suppressed swelling ratio of 17.9–24.9% despite an excessive water uptake of 33.2–50.3% at 90 °C, and demonstrated a remarkable alkaline stability under 2.0 M KOH conditions over 1000 h.

A strategy to construct alkali-stable anion exchange membranes bearing ammonium groups via flexible spacers

2015 ◽  
Vol 3 (29) ◽  
pp. 15015-15019 ◽  
Author(s):  
Zhengjin Yang ◽  
Jiahui Zhou ◽  
Siwen Wang ◽  
Jianqiu Hou ◽  
Liang Wu ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Phenylene Oxide ◽  
Stable Anion ◽  
Novel Strategy

A novel strategy is provided to construct alkali-stable poly(phenylene oxide) based anion exchange membranes to alleviate cation-induced degradation.

Alkyl bisimidazolium-mediated crosslinked comb-shaped polymers as highly conductive and stable anion exchange membranes

RSC Advances ◽  
2016 ◽  
Vol 6 (20) ◽  
pp. 16168-16176 ◽  
Author(s):  
Anil H. N. Rao ◽  
SangYong Nam ◽  
Tae-Hyun Kim
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Arylene Ether ◽  
Stable Anion

Crosslinked poly(arylene ether sulfone)s (PES) with pendant alkyl bisimidazolium units, which act as both crosslinkage sites and hydroxide conductors, were developed as anion exchange membranes (AEMs).

Alkaline stable anion exchange membranes based on poly(phenylene-co-arylene ether ketone) backbones

2016 ◽  
Vol 7 (38) ◽  
pp. 5988-5995 ◽  
Author(s):  
Xiang Qiu ◽  
Mitsuru Ueda ◽  
Yi Fang ◽  
Shouwen Chen ◽  
Zhaoxia Hu ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Anion Exchange Membranes ◽  
Alkaline Stability ◽  
Arylene Ether ◽  
Ether Ketone ◽  
Stable Anion

To improve the alkaline stability of anion exchange membranes (AEMs) based on conventional poly(ether ketone/sulfone) backbones, two novel poly(phenylene-co-arylene ether ketone) (PPAEK) ionomers with a quaternary ammonium (QA-) or imidazolium (IM-) group were prepared.

scholarly journals Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(Arylene Ether Sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 364
Author(s):  
Prem P. Sharma ◽  
Yeeun Jeon ◽  
Dukjoon Kim
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Arylene Ether ◽  
Ft Ir ◽  
The Cross ◽  
Stable Anion ◽  
Trimethyl Amine ◽  
A Minor ◽  
Exchange Membrane

Alkaline stable anion exchange membranes based on the cross-linked poly(arylene ether sulfone) grafted with dual quaternary piperidine (XPAES-DP) units were synthesized. The chemical structure of the synthesized PAES-DP was validated using 1H-NMR and FT-IR spectroscopy. The physicochemical, thermal, and mechanical properties of XPAES-DP membranes were compared with those of two linear PAES based membranes grafted with single piperidine (PAES-P) unit and conventional trimethyl amine (PAES-TM). XPAES-DP membrane showed the ionic conductivity of 0.021 S cm−1 at 40 °C which was much higher than that of PAES-P and PAES-TM because of the possession of more quaternary ammonium groups in the cross-linked structure. This cross-linked structure of the XPAES-DP membrane resulted in a higher tensile strength of 18.11 MPa than that of PAES-P, 17.09 MPa. In addition, as the XPAES-DP membrane shows consistency in the ionic conductivity even after 96 h in 3 M KOH solution with a minor change, its chemical stability was assured for the application of anion exchange membrane fuel cell. The single-cell assembled with XPAES-DP membrane displayed a power density of 109 mWcm−2 at 80 °C under 100% relative humidity.

Anion-exchange Membranes Containing Fluorinated Poly(arylene ether)s: Properties and Application in Pt-free Hydrazine Fuel Cell

2016 ◽  
Vol 45 (6) ◽  
pp. 664-666 ◽  
Author(s):  
Eriko Nishino ◽  
Junko Yamada ◽  
Koichiro Asazawa ◽  
Susumu Yamaguchi ◽  
Manai Shimada ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Arylene Ether

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.

Poly(2,6-dimethyl-1,4-phenylene oxide)s with Various Head Groups: Effect of Head Groups on the Properties of Anion Exchange Membranes

2018 ◽  
Vol 10 (48) ◽  
pp. 41279-41292 ◽  
Author(s):  
Haeryang Lim ◽  
Boryeon Lee ◽  
Dayoung Yun ◽  
Abu Zafar Al Munsur ◽  
Ji Eon Chae ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Phenylene Oxide ◽  
Head Groups
Sign in / Sign up

Export Citation Format

Share Document