Fuel cell membrane materials by chemical grafting of aromatic main-chain polymers
Jannasch, Patric LU
(2005)
In Fuel Cells
5(2).
p.248-260
- Abstract
- An extensive world-wide pursuit for new efficient fuel cell membranes materials is currently motivating research on proton-conducting ionomers based on durable aromatic main-chain polymers. In this context, most ionomers. have been prepared either by direct sulfonation of polymers, using for example. fuming. sulfuric-acid, or by direct polymerizations using different sulfonated monomers, Far less exploited are chemical grafting reactions carried out to introduce sulfonic acid units, or alternative acidic units, directly on the polymer main-chain, or on side-chains to the polymer main-chain. This versatile method offers very interesting possibilities, not only to control the degree and the site of sulfonation, but also when it comes to... (More)
- An extensive world-wide pursuit for new efficient fuel cell membranes materials is currently motivating research on proton-conducting ionomers based on durable aromatic main-chain polymers. In this context, most ionomers. have been prepared either by direct sulfonation of polymers, using for example. fuming. sulfuric-acid, or by direct polymerizations using different sulfonated monomers, Far less exploited are chemical grafting reactions carried out to introduce sulfonic acid units, or alternative acidic units, directly on the polymer main-chain, or on side-chains to the polymer main-chain. This versatile method offers very interesting possibilities, not only to control the degree and the site of sulfonation, but also when it comes to manipulating the molecular mobility of the sulfonic acid units and their distance from the polymer main-chain. The length and nature of the grafted units have shown to have a large influence on for example the water-uptake characteristics and conductivity of,ionomer membranes, especially at temperatures above 100 degrees C. Grafting can also be used to introduce other useful functions to the polymers, or to crosslink membranes. This paper reviews various grafting reactions carried out on aromatic main-chain polymers, especially polybenzimidazoles and polysulfones, to prepare membrane materials, as well as the characteristics of these materials regarding their use in fuel cells. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/153080
- author
- Jannasch, Patric
LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Fuel Cells
- volume
- 5
- issue
- 2
- pages
- 248 - 260
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000232198800007
- scopus:18544382703
- ISSN
- 1615-6854
- DOI
- 10.1002/fuce.200400051
- 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
- c3773a0a-7423-491b-9401-ed8164f4aa5f (old id 153080)
- date added to LUP
- 2016-04-01 12:18:53
- date last changed
- 2022-04-21 05:48:07
@article{c3773a0a-7423-491b-9401-ed8164f4aa5f,
abstract = {{An extensive world-wide pursuit for new efficient fuel cell membranes materials is currently motivating research on proton-conducting ionomers based on durable aromatic main-chain polymers. In this context, most ionomers. have been prepared either by direct sulfonation of polymers, using for example. fuming. sulfuric-acid, or by direct polymerizations using different sulfonated monomers, Far less exploited are chemical grafting reactions carried out to introduce sulfonic acid units, or alternative acidic units, directly on the polymer main-chain, or on side-chains to the polymer main-chain. This versatile method offers very interesting possibilities, not only to control the degree and the site of sulfonation, but also when it comes to manipulating the molecular mobility of the sulfonic acid units and their distance from the polymer main-chain. The length and nature of the grafted units have shown to have a large influence on for example the water-uptake characteristics and conductivity of,ionomer membranes, especially at temperatures above 100 degrees C. Grafting can also be used to introduce other useful functions to the polymers, or to crosslink membranes. This paper reviews various grafting reactions carried out on aromatic main-chain polymers, especially polybenzimidazoles and polysulfones, to prepare membrane materials, as well as the characteristics of these materials regarding their use in fuel cells.}},
author = {{Jannasch, Patric}},
issn = {{1615-6854}},
language = {{eng}},
number = {{2}},
pages = {{248--260}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Fuel Cells}},
title = {{Fuel cell membrane materials by chemical grafting of aromatic main-chain polymers}},
url = {{http://dx.doi.org/10.1002/fuce.200400051}},
doi = {{10.1002/fuce.200400051}},
volume = {{5}},
year = {{2005}},
}