Hypersulfonated polyelectrolytes: preparation, stability and conductivity
Takamuku, Shogo LU ; Wohlfarth, Andreas ; Manhart, Angelika ; Räder, Petra and Jannasch, Patric LU
(2015)
In Polymer Chemistry
6(8).
p.1267-1274
- Abstract
- Specially tailored polyelectrolytes are becoming important as energy-related materials. Here we explore a synthetic strategy to prepare fully aromatic polymers containing single phenylene rings in the backbone functionalized with four sulfonic acid groups. Thioether bridges of semifluorinated poly(arylene thioether)s were oxidized to sulfone bridges, followed by substitution of all fluorines by NaSH and quantitative oxidation of the resulting thiol groups. This gave poly(arylene sulfone)s containing octasulfonated biphenyl units, reaching ion exchange capacities up to 8 meq. g-1 and unprecedented high local sulfonic acid concentrations. These polyelectrolytes are stable up to 300 °C under air and achieve proton conductivities of up to 90... (More)
- Specially tailored polyelectrolytes are becoming important as energy-related materials. Here we explore a synthetic strategy to prepare fully aromatic polymers containing single phenylene rings in the backbone functionalized with four sulfonic acid groups. Thioether bridges of semifluorinated poly(arylene thioether)s were oxidized to sulfone bridges, followed by substitution of all fluorines by NaSH and quantitative oxidation of the resulting thiol groups. This gave poly(arylene sulfone)s containing octasulfonated biphenyl units, reaching ion exchange capacities up to 8 meq. g-1 and unprecedented high local sulfonic acid concentrations. These polyelectrolytes are stable up to 300 °C under air and achieve proton conductivities of up to 90 mS cm-1 at 120 °C and 50% relative humidity. Despite the excellent performance of this unique new class of hypersulfonated polymers, our data suggests that incomplete proton dissociation may ultimately limit the conductivity of highly sulfonated polymers. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4779892
- author
- Takamuku, Shogo
LU
; Wohlfarth, Andreas
; Manhart, Angelika
; Räder, Petra
and Jannasch, Patric
LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Polymer Chemistry
- volume
- 6
- issue
- 8
- pages
- 1267 - 1274
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000349666600007
- scopus:84922901401
- ISSN
- 1759-9954
- DOI
- 10.1039/C4PY01177E
- language
- English
- LU publication?
- yes
- additional info
- First published online 18 Nov 2014
- id
- 4bf39369-5670-4ae9-ab7f-51ff5f3b2234 (old id 4779892)
- alternative location
- http://pubs.rsc.org/en/Content/ArticleLanding/2015/PY/C4PY01177E#!divAbstract
- date added to LUP
- 2016-04-01 10:52:24
- date last changed
- 2022-02-17 22:07:30
@article{4bf39369-5670-4ae9-ab7f-51ff5f3b2234,
abstract = {{Specially tailored polyelectrolytes are becoming important as energy-related materials. Here we explore a synthetic strategy to prepare fully aromatic polymers containing single phenylene rings in the backbone functionalized with four sulfonic acid groups. Thioether bridges of semifluorinated poly(arylene thioether)s were oxidized to sulfone bridges, followed by substitution of all fluorines by NaSH and quantitative oxidation of the resulting thiol groups. This gave poly(arylene sulfone)s containing octasulfonated biphenyl units, reaching ion exchange capacities up to 8 meq. g-1 and unprecedented high local sulfonic acid concentrations. These polyelectrolytes are stable up to 300 °C under air and achieve proton conductivities of up to 90 mS cm-1 at 120 °C and 50% relative humidity. Despite the excellent performance of this unique new class of hypersulfonated polymers, our data suggests that incomplete proton dissociation may ultimately limit the conductivity of highly sulfonated polymers.}},
author = {{Takamuku, Shogo and Wohlfarth, Andreas and Manhart, Angelika and Räder, Petra and Jannasch, Patric}},
issn = {{1759-9954}},
language = {{eng}},
number = {{8}},
pages = {{1267--1274}},
publisher = {{Royal Society of Chemistry}},
series = {{Polymer Chemistry}},
title = {{Hypersulfonated polyelectrolytes: preparation, stability and conductivity}},
url = {{http://dx.doi.org/10.1039/C4PY01177E}},
doi = {{10.1039/C4PY01177E}},
volume = {{6}},
year = {{2015}},
}