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Dendronised polymer architectures for fuel cell membranes

Nielsen, Mads M.; Dimitrov, Ivaylo; Takamuku, Shogo LU ; Jannasch, Patric LU ; Jankova, Katja and Hvilsted, Søren (2013) In Fuel Cells 13(3). p.342-354
Abstract
Multi-step synthetic pathways to low-ion exchange capacity (IEC) polysulfone (PSU) with sulfonic acid functionalized aliphatic dendrons and sulfonated comb-type PSU structures are developed and investigated in a comparative study as non-fluorinated proton exchange membrane (PEM) candidates. In each case the side chains are synthesized and introduced in their sulfonated form onto an azide-functionalized PSU via click chemistry. Three degrees of substitution of each architecture were prepared in order to evaluate the dependence on number of sulfonated side chains. Solution cast membranes were evaluated as PEMs for use in fuel cells by proton conductivity measurements, and in the case of dendronized architectures: thermal stability. The... (More)
Multi-step synthetic pathways to low-ion exchange capacity (IEC) polysulfone (PSU) with sulfonic acid functionalized aliphatic dendrons and sulfonated comb-type PSU structures are developed and investigated in a comparative study as non-fluorinated proton exchange membrane (PEM) candidates. In each case the side chains are synthesized and introduced in their sulfonated form onto an azide-functionalized PSU via click chemistry. Three degrees of substitution of each architecture were prepared in order to evaluate the dependence on number of sulfonated side chains. Solution cast membranes were evaluated as PEMs for use in fuel cells by proton conductivity measurements, and in the case of dendronized architectures: thermal stability. The proposed synthetic strategy facilitates exploration of a non-fluorous system with various flexible side chains where IEC is tunable by the degree of substitution. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Click Chemistry, Fuel Cells, Polysulfone, Proton Conductivity, Sulfonic Acid
in
Fuel Cells
volume
13
issue
3
pages
342 - 354
publisher
John Wiley & Sons
external identifiers
  • wos:000320276100006
  • scopus:84879098851
ISSN
1615-6854
DOI
10.1002/fuce.201200192
language
English
LU publication?
yes
id
54265346-85cf-4ff5-9be5-6756fb3d507e (old id 3561023)
alternative location
http://onlinelibrary.wiley.com/doi/10.1002/fuce.201200192/abstract
date added to LUP
2013-04-10 17:07:30
date last changed
2019-07-30 01:41:59
@article{54265346-85cf-4ff5-9be5-6756fb3d507e,
  abstract     = {Multi-step synthetic pathways to low-ion exchange capacity (IEC) polysulfone (PSU) with sulfonic acid functionalized aliphatic dendrons and sulfonated comb-type PSU structures are developed and investigated in a comparative study as non-fluorinated proton exchange membrane (PEM) candidates. In each case the side chains are synthesized and introduced in their sulfonated form onto an azide-functionalized PSU via click chemistry. Three degrees of substitution of each architecture were prepared in order to evaluate the dependence on number of sulfonated side chains. Solution cast membranes were evaluated as PEMs for use in fuel cells by proton conductivity measurements, and in the case of dendronized architectures: thermal stability. The proposed synthetic strategy facilitates exploration of a non-fluorous system with various flexible side chains where IEC is tunable by the degree of substitution.},
  author       = {Nielsen, Mads M. and Dimitrov, Ivaylo and Takamuku, Shogo and Jannasch, Patric and Jankova, Katja and Hvilsted, Søren},
  issn         = {1615-6854},
  keyword      = {Click Chemistry,Fuel Cells,Polysulfone,Proton Conductivity,Sulfonic Acid},
  language     = {eng},
  number       = {3},
  pages        = {342--354},
  publisher    = {John Wiley & Sons},
  series       = {Fuel Cells},
  title        = {Dendronised polymer architectures for fuel cell membranes},
  url          = {http://dx.doi.org/10.1002/fuce.201200192},
  volume       = {13},
  year         = {2013},
}