Proton-conducting aromatic polymers carrying hypersulfonated side chains for fuel cell applications
Lafitte, Benoit LU and Jannasch, Patric LU
(2007)
In Advanced Functional Materials
17(15).
p.2823-2834
- Abstract
- Polysulfone main chains have been functionalized with hypersulfonated aromatic side chains where the sulfonic acid groups were highly concentrated on a local scale, with two acid groups placed on the same aromatic ring. This molecular design was implemented to promote the nanophase separation that takes place in proton-exchange membranes between the hydrophobic polymer main chain and the hydrophilic ionic groups responsible for the water uptake and conduction. Morphological investigations revealed that polysulfones functionalized with disulfonaphthoxybenzoyl or trisulfopyrenoxybenzoyl side chains contained larger and more uniform ionic clusters, as compared to conventionally sulfonated polysulfones where the acid groups are dispersed along... (More)
- Polysulfone main chains have been functionalized with hypersulfonated aromatic side chains where the sulfonic acid groups were highly concentrated on a local scale, with two acid groups placed on the same aromatic ring. This molecular design was implemented to promote the nanophase separation that takes place in proton-exchange membranes between the hydrophobic polymer main chain and the hydrophilic ionic groups responsible for the water uptake and conduction. Morphological investigations revealed that polysulfones functionalized with disulfonaphthoxybenzoyl or trisulfopyrenoxybenzoyl side chains contained larger and more uniform ionic clusters, as compared to conventionally sulfonated polysulfones where the acid groups are dispersed along the main chain. Membranes based on the polymers carrying hypersulfonated side chains formed efficient networks of water-filled nanopores upon hydration, which facilitated excellent levels of proton conductivity exceeding that of the commercial Nafion membrane at moderate water uptakes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/572110
- author
- Lafitte, Benoit
LU
and Jannasch, Patric
LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Conductivity • Fuel cells • Membranes • Nanoporous materials • Polymers
- in
- Advanced Functional Materials
- volume
- 17
- issue
- 15
- pages
- 2823 - 2834
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000250526300027
- other:CODEN: AFMDC6
- scopus:35548956079
- ISSN
- 1616-3028
- DOI
- 10.1002/adfm.200700107
- language
- English
- LU publication?
- yes
- additional info
- 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
- 54146e19-15e2-47d5-8f7d-059b7e5146c8 (old id 572110)
- alternative location
- http://www3.interscience.wiley.com/cgi-bin/abstract/115806173/ABSTRACT
- date added to LUP
- 2016-04-01 12:18:47
- date last changed
- 2022-08-21 05:30:52
@article{54146e19-15e2-47d5-8f7d-059b7e5146c8,
abstract = {{Polysulfone main chains have been functionalized with hypersulfonated aromatic side chains where the sulfonic acid groups were highly concentrated on a local scale, with two acid groups placed on the same aromatic ring. This molecular design was implemented to promote the nanophase separation that takes place in proton-exchange membranes between the hydrophobic polymer main chain and the hydrophilic ionic groups responsible for the water uptake and conduction. Morphological investigations revealed that polysulfones functionalized with disulfonaphthoxybenzoyl or trisulfopyrenoxybenzoyl side chains contained larger and more uniform ionic clusters, as compared to conventionally sulfonated polysulfones where the acid groups are dispersed along the main chain. Membranes based on the polymers carrying hypersulfonated side chains formed efficient networks of water-filled nanopores upon hydration, which facilitated excellent levels of proton conductivity exceeding that of the commercial Nafion membrane at moderate water uptakes.}},
author = {{Lafitte, Benoit and Jannasch, Patric}},
issn = {{1616-3028}},
keywords = {{Conductivity • Fuel cells • Membranes • Nanoporous materials • Polymers}},
language = {{eng}},
number = {{15}},
pages = {{2823--2834}},
publisher = {{Wiley-Blackwell}},
series = {{Advanced Functional Materials}},
title = {{Proton-conducting aromatic polymers carrying hypersulfonated side chains for fuel cell applications}},
url = {{http://dx.doi.org/10.1002/adfm.200700107}},
doi = {{10.1002/adfm.200700107}},
volume = {{17}},
year = {{2007}},
}