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Proton conducting polysulfone ionomers carrying sulfoaryloxybenzoyl side chains

Lafitte, Benoit LU ; Puchner, Mario LU and Jannasch, Patric LU (2005) In Macromolecular Rapid Communications 26(18). p.1464-1468
Abstract
Novel proton conducting ionomers have been prepared by attaching pendant sulfonated aromatic side chains to polysulfone. Lithiated polysulfone was first reacted with 4-fluorobenzoic acid chloride to introduce 4-fluorobenzoyl side chains to the polymer main chain. Next, the activated fluoro groups were replaced by 4-sulfophenoxy or 7-sulfo-2-naphthoxy in a potassium carbonate-mediated nucleophilic substitution reaction. This reaction proceeded under full conversion and the degree of substitution was easily controlled by the degree of lithiation in the first step. Membranes based on ionomers carrying one sulfophenoxybenzoyl unit per polymer repeat unit reached a proton conductivity exceeding 30 mS center dot cm(-1) at 120 degrees C under... (More)
Novel proton conducting ionomers have been prepared by attaching pendant sulfonated aromatic side chains to polysulfone. Lithiated polysulfone was first reacted with 4-fluorobenzoic acid chloride to introduce 4-fluorobenzoyl side chains to the polymer main chain. Next, the activated fluoro groups were replaced by 4-sulfophenoxy or 7-sulfo-2-naphthoxy in a potassium carbonate-mediated nucleophilic substitution reaction. This reaction proceeded under full conversion and the degree of substitution was easily controlled by the degree of lithiation in the first step. Membranes based on ionomers carrying one sulfophenoxybenzoyl unit per polymer repeat unit reached a proton conductivity exceeding 30 mS center dot cm(-1) at 120 degrees C under immersed conditions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Macromolecular Rapid Communications
volume
26
issue
18
pages
1464 - 1468
publisher
John Wiley & Sons
external identifiers
  • wos:000232327600004
  • scopus:26044440162
ISSN
1022-1336
DOI
10.1002/marc.200500391
language
English
LU publication?
yes
id
1409871d-95f5-45c1-a2d6-547cd4c7ea3b (old id 153083)
date added to LUP
2007-07-13 13:38:36
date last changed
2017-08-27 03:51:03
@article{1409871d-95f5-45c1-a2d6-547cd4c7ea3b,
  abstract     = {Novel proton conducting ionomers have been prepared by attaching pendant sulfonated aromatic side chains to polysulfone. Lithiated polysulfone was first reacted with 4-fluorobenzoic acid chloride to introduce 4-fluorobenzoyl side chains to the polymer main chain. Next, the activated fluoro groups were replaced by 4-sulfophenoxy or 7-sulfo-2-naphthoxy in a potassium carbonate-mediated nucleophilic substitution reaction. This reaction proceeded under full conversion and the degree of substitution was easily controlled by the degree of lithiation in the first step. Membranes based on ionomers carrying one sulfophenoxybenzoyl unit per polymer repeat unit reached a proton conductivity exceeding 30 mS center dot cm(-1) at 120 degrees C under immersed conditions.},
  author       = {Lafitte, Benoit and Puchner, Mario and Jannasch, Patric},
  issn         = {1022-1336},
  language     = {eng},
  number       = {18},
  pages        = {1464--1468},
  publisher    = {John Wiley & Sons},
  series       = {Macromolecular Rapid Communications},
  title        = {Proton conducting polysulfone ionomers carrying sulfoaryloxybenzoyl side chains},
  url          = {http://dx.doi.org/10.1002/marc.200500391},
  volume       = {26},
  year         = {2005},
}