Influence of the polymer backbone structure on the properties of aromatic ionomers with pendant sulfobenzoyl side chains for use as proton-exchange membranes
Persson Jutemar, Elin LU and Jannasch, Patric LU
(2010)
In ACS Applied Materials and Interfaces
2(12).
p.3718-3725
- Abstract
- Six different ionomers having various aromatic polymer backbones with pendant 2-sulfobenzoyl side chains were prepared by nucleophilic aromatic substitution reactions of lithium 2,6-difluoro-2′-sulfobenzophenone with 4,4-biphenol, 2,7-dihydroxynaphthalene, 4,4-isopropylidenediphenol, 4,4-dihydroxydiphenyl ether, 4,4′-thiodiphenol, and 4,4′-thiobisbenzenethiol, respectively, to produce four poly(arylene ether)s, one poly(arylene ether sulfide), and one poly(arylene sulfide). Mechanically tough proton-exchange membranes with ion-exchange capacities in the narrow range from 1.9 to 2.3 mequiv/g were cast from the high-molecular-weight ionomers, and subsequently investigated with respect to their structure−property relationships. Glass... (More)
- Six different ionomers having various aromatic polymer backbones with pendant 2-sulfobenzoyl side chains were prepared by nucleophilic aromatic substitution reactions of lithium 2,6-difluoro-2′-sulfobenzophenone with 4,4-biphenol, 2,7-dihydroxynaphthalene, 4,4-isopropylidenediphenol, 4,4-dihydroxydiphenyl ether, 4,4′-thiodiphenol, and 4,4′-thiobisbenzenethiol, respectively, to produce four poly(arylene ether)s, one poly(arylene ether sulfide), and one poly(arylene sulfide). Mechanically tough proton-exchange membranes with ion-exchange capacities in the narrow range from 1.9 to 2.3 mequiv/g were cast from the high-molecular-weight ionomers, and subsequently investigated with respect to their structure−property relationships. Glass transitions were only detected for ionomers in the sodium salt form, and increasing glass-transition temperatures (Tg) were found to give higher thermal decomposition temperatures. Analysis by small-angle X-ray scattering indicated that the ionic clustering was promoted for ionomers with flexible polymer backbones and low Tg values. The proton conductivity of the membranes at 80 °C under fully humidified conditions was found between 0.02 and 0.2 S/cm and appeared to depend primarily on the Tg. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1734508
- author
- Persson Jutemar, Elin
LU
and Jannasch, Patric
LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- SAXS, proton-exchange membrane fuel cells, sulfonated polymer electrolytes, polycondensations, polyaromatics
- in
- ACS Applied Materials and Interfaces
- volume
- 2
- issue
- 12
- pages
- 3718 - 3725
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000285449300046
- scopus:79151479609
- pmid:21138250
- ISSN
- 1944-8244
- DOI
- 10.1021/am1008612
- language
- English
- LU publication?
- yes
- additional info
- Publication Date (Web): December 7, 2010 The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
- id
- 93a60fbf-222a-425c-9b70-b7f5f2461ba4 (old id 1734508)
- alternative location
- http://pubs.acs.org/doi/abs/10.1021/am1008612
- date added to LUP
- 2016-04-01 10:21:22
- date last changed
- 2022-01-25 22:24:21
@article{93a60fbf-222a-425c-9b70-b7f5f2461ba4,
abstract = {{Six different ionomers having various aromatic polymer backbones with pendant 2-sulfobenzoyl side chains were prepared by nucleophilic aromatic substitution reactions of lithium 2,6-difluoro-2′-sulfobenzophenone with 4,4-biphenol, 2,7-dihydroxynaphthalene, 4,4-isopropylidenediphenol, 4,4-dihydroxydiphenyl ether, 4,4′-thiodiphenol, and 4,4′-thiobisbenzenethiol, respectively, to produce four poly(arylene ether)s, one poly(arylene ether sulfide), and one poly(arylene sulfide). Mechanically tough proton-exchange membranes with ion-exchange capacities in the narrow range from 1.9 to 2.3 mequiv/g were cast from the high-molecular-weight ionomers, and subsequently investigated with respect to their structure−property relationships. Glass transitions were only detected for ionomers in the sodium salt form, and increasing glass-transition temperatures (Tg) were found to give higher thermal decomposition temperatures. Analysis by small-angle X-ray scattering indicated that the ionic clustering was promoted for ionomers with flexible polymer backbones and low Tg values. The proton conductivity of the membranes at 80 °C under fully humidified conditions was found between 0.02 and 0.2 S/cm and appeared to depend primarily on the Tg.}},
author = {{Persson Jutemar, Elin and Jannasch, Patric}},
issn = {{1944-8244}},
keywords = {{SAXS; proton-exchange membrane fuel cells; sulfonated polymer electrolytes; polycondensations; polyaromatics}},
language = {{eng}},
number = {{12}},
pages = {{3718--3725}},
publisher = {{The American Chemical Society (ACS)}},
series = {{ACS Applied Materials and Interfaces}},
title = {{Influence of the polymer backbone structure on the properties of aromatic ionomers with pendant sulfobenzoyl side chains for use as proton-exchange membranes}},
url = {{http://dx.doi.org/10.1021/am1008612}},
doi = {{10.1021/am1008612}},
volume = {{2}},
year = {{2010}},
}