Aromatic polymers incorporating bis-N-spirocyclic quaternary ammonium moieties for anion-exchange membranes
Pham, Thanh Huong LU and Jannasch, Patric LU
(2015)
In ACS Macro Letters
4(12).
p.1370-1375
- Abstract
- We have prepared and studied a new class of anion conducting membrane materials functionalized with N-spirocyclic quaternary ammonium (QA) cations formed via cyclo-quaternization reactions involving pyrrolidine, piperidine and azepane, respectively. These groups were introduced in pairs, adjoined through fused phenyl rings along poly(arylene ether sulfone) backbones. Despite their bulkiness, the bis-N-spirocyclic QA moieties efficiently formed ionic clusters in anion-exchange membranes (AEMs) and showed thermal stability up to 309 oC. The bis-N-spirocyclic QA moieties had reasonable alkaline stability and the hydroxide ion conductivity of the AEMs increased with decreasing ring size, and a fully hydrated pyrrolidine-based AEM reached a... (More)
- We have prepared and studied a new class of anion conducting membrane materials functionalized with N-spirocyclic quaternary ammonium (QA) cations formed via cyclo-quaternization reactions involving pyrrolidine, piperidine and azepane, respectively. These groups were introduced in pairs, adjoined through fused phenyl rings along poly(arylene ether sulfone) backbones. Despite their bulkiness, the bis-N-spirocyclic QA moieties efficiently formed ionic clusters in anion-exchange membranes (AEMs) and showed thermal stability up to 309 oC. The bis-N-spirocyclic QA moieties had reasonable alkaline stability and the hydroxide ion conductivity of the AEMs increased with decreasing ring size, and a fully hydrated pyrrolidine-based AEM reached a conductivity of 110 mS cm-1 at 80 oC. The results of this study indicate synthetic pathways to high-performance AEMs based on N-spirocyclic QA groups. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8171876
- author
- Pham, Thanh Huong
LU
and Jannasch, Patric
LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- ACS Macro Letters
- volume
- 4
- issue
- 12
- pages
- 1370 - 1375
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000366869500013
- scopus:84949870729
- ISSN
- 2161-1653
- DOI
- 10.1021/acsmacrolett.5b00690
- language
- English
- LU publication?
- yes
- additional info
- Publication Date (Web): November 23, 2015
- id
- d5e4c7e0-1c19-47c5-b513-e8ee5e4eff60 (old id 8171876)
- alternative location
- http://pubs.acs.org/doi/full/10.1021/acsmacrolett.5b00690
- date added to LUP
- 2016-04-01 14:30:37
- date last changed
- 2022-05-27 01:53:07
@article{d5e4c7e0-1c19-47c5-b513-e8ee5e4eff60,
abstract = {{We have prepared and studied a new class of anion conducting membrane materials functionalized with N-spirocyclic quaternary ammonium (QA) cations formed via cyclo-quaternization reactions involving pyrrolidine, piperidine and azepane, respectively. These groups were introduced in pairs, adjoined through fused phenyl rings along poly(arylene ether sulfone) backbones. Despite their bulkiness, the bis-N-spirocyclic QA moieties efficiently formed ionic clusters in anion-exchange membranes (AEMs) and showed thermal stability up to 309 oC. The bis-N-spirocyclic QA moieties had reasonable alkaline stability and the hydroxide ion conductivity of the AEMs increased with decreasing ring size, and a fully hydrated pyrrolidine-based AEM reached a conductivity of 110 mS cm-1 at 80 oC. The results of this study indicate synthetic pathways to high-performance AEMs based on N-spirocyclic QA groups.}},
author = {{Pham, Thanh Huong and Jannasch, Patric}},
issn = {{2161-1653}},
language = {{eng}},
number = {{12}},
pages = {{1370--1375}},
publisher = {{The American Chemical Society (ACS)}},
series = {{ACS Macro Letters}},
title = {{Aromatic polymers incorporating bis-<i>N</i>-spirocyclic quaternary ammonium moieties for anion-exchange membranes}},
url = {{http://dx.doi.org/10.1021/acsmacrolett.5b00690}},
doi = {{10.1021/acsmacrolett.5b00690}},
volume = {{4}},
year = {{2015}},
}