Poly(phenylene oxide)s incorporating N-spirocyclic quaternary ammonium cation/cation strings for anion exchange membranes

2020 ◽  
Vol 595 ◽  
pp. 117507 ◽  
Author(s):  
Jiandang Xue ◽  
Xin Liu ◽  
Junfeng Zhang ◽  
Yan Yin ◽  
Michael D. Guiver
Keyword(s):  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Ammonium Cation ◽  
Anion Exchange Membranes ◽  
Phenylene Oxide

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 ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Ion Exchange ◽  
Click Chemistry ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Polymer Electrolytes ◽  
Anion Exchange Membranes ◽  
Alkaline Fuel Cell ◽  
Phenylene Oxide ◽  
Durable Polymer

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.

scholarly journals Poly(phenylene oxide) functionalized with quaternary ammonium groups via flexible alkyl spacers for high-performance anion exchange membranes

2015 ◽  
Vol 3 (10) ◽  
pp. 5280-5284 ◽  
Author(s):  
Hai-Son Dang ◽  
Eva Annika Weiber ◽  
Patric Jannasch
Keyword(s):  
Anion Exchange ◽  
Quaternary Ammonium ◽  
High Performance ◽  
Ion Conductivity ◽  
Side Chains ◽  
Anion Exchange Membranes ◽  
Hydroxide Ion ◽  
Alkaline Stability ◽  
Phenylene Oxide ◽  
Alkyl Side Chains

Hydroxide ion conductivity and alkaline stability of anion exchange membranes were dramatically improved by placing quaternary ammonium groups on long alkyl side chains.

Tuning the properties of poly(2,6-dimethyl-1,4-phenylene oxide) anion exchange membranes and their performance in H2/O2 fuel cells

2018 ◽  
Vol 11 (2) ◽  
pp. 435-446 ◽  
Author(s):  
Lei Liu ◽  
Xiaomeng Chu ◽  
Jiayou Liao ◽  
Yingda Huang ◽  
Ying Li ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Cell Performance ◽  
Anion Exchange Membranes ◽  
Fuel Cell Performance ◽  
Phenylene Oxide ◽  
Complete Investigation

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.

Spirocyclic quaternary ammonium cations for alkaline anion exchange membrane applications: an experimental and theoretical study

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94387-94398 ◽  
Author(s):  
Liang Gu ◽  
Huilong Dong ◽  
Zhe Sun ◽  
Youyong Li ◽  
Feng Yan
Keyword(s):  
Theoretical Analysis ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Theoretical Study ◽  
Anion Exchange Membrane ◽  
Ammonium Cation ◽  
Anion Exchange Membranes ◽  
Quaternary Ammonium Cations ◽  
Exchange Membrane

Spirocyclic quaternary ammonium cation based alkaline anion exchange membranes were synthesized and studied by both experimental and theoretical analysis.

Reactive oxygen species accelerate degradation of anion exchange membranes based on polyphenylene oxide in alkaline environments

2016 ◽  
Vol 18 (29) ◽  
pp. 19705-19712 ◽  
Author(s):  
Javier Parrondo ◽  
Zhongyang Wang ◽  
Min-Suk J. Jung ◽  
Vijay Ramani
Keyword(s):  
Reactive Oxygen Species ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Ammonium Cation ◽  
Anion Exchange Membranes ◽  
Oxygen Species ◽  
Polyphenylene Oxide ◽  
Alkaline Environments ◽  
Cation Sites ◽  
Accelerate Degradation

The degradation of quaternary ammonium-cation-sites in PPO-based AEMs in alkali was considerably faster in the presence oxygen.

Role of cationic groups on structural and dynamical correlations in hydrated quaternary ammonium-functionalized poly(p-phenylene oxide)-based anion exchange membranes

2018 ◽  
Vol 20 (29) ◽  
pp. 19350-19362 ◽  
Author(s):  
Dengpan Dong ◽  
Xiaoyu Wei ◽  
Justin B. Hooper ◽  
Hongchao Pan ◽  
Dmitry Bedrov
Keyword(s):  
Molecular Dynamics ◽  
Force Field ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Water Dynamics ◽  
Anion Exchange Membranes ◽  
Polarizable Force Field ◽  
Phenylene Oxide ◽  
Dynamics Simulations

Extensive atomistic molecular dynamics simulations were conducted using a polarizable force field to study hydroxide and water dynamics in anion exchange membranes.

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