Fully aromatic block copolymers for fuel cell membranes with densely sulfonated nanophase domains
(2011) In Macromolecular Rapid Communications 32(5). p.474-480- Abstract
- Two multiblock copoly(arylene ether sulfone)s with similar block lengths and ion exchange capacities (IECs) were prepared by a coupling reaction between a non-sulfonated precursor block and a highly sulfonated precursor block containing either fully disulfonated diarylsulfone or fully tetrasulfonated tetraaryldisulfone segments. The latter two precursor blocks were sulfonated via lithiation-sulfination reactions whereby the sulfonic acid groups were exclusively placed in ortho positions to the many sulfone bridges, giving these blocks IECs of 4.1 and 4.6 meq·g−1, respectively. Copolymer membranes with IECs of 1.4 meq·g−1 displayed well-connected hydrophilic nanophase domains and had decomposition temperatures at, or above, 300 °C under... (More)
- Two multiblock copoly(arylene ether sulfone)s with similar block lengths and ion exchange capacities (IECs) were prepared by a coupling reaction between a non-sulfonated precursor block and a highly sulfonated precursor block containing either fully disulfonated diarylsulfone or fully tetrasulfonated tetraaryldisulfone segments. The latter two precursor blocks were sulfonated via lithiation-sulfination reactions whereby the sulfonic acid groups were exclusively placed in ortho positions to the many sulfone bridges, giving these blocks IECs of 4.1 and 4.6 meq·g−1, respectively. Copolymer membranes with IECs of 1.4 meq·g−1 displayed well-connected hydrophilic nanophase domains and had decomposition temperatures at, or above, 300 °C under air. The copolymer with the tetrasulfonated tetraaryldisulfone segments showed a proton conductivity of 0.13 S·cm−1 at 80 °C under fully humidified conditions, and surpassed that of a perfluorosulfonic acid membrane (NRE212) by a factor of 5 at –20 °C over time. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1744864
- author
- Takamuku, Shogo LU and Jannasch, Patric LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- polymer electrolyte fuel cell membranes, sulfonations, amphiphilic block copolymers, ionomers, polycondensation
- in
- Macromolecular Rapid Communications
- volume
- 32
- issue
- 5
- pages
- 474 - 480
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000288037100010
- scopus:79951905408
- pmid:21433202
- ISSN
- 1022-1336
- DOI
- 10.1002/marc.201000683
- language
- English
- LU publication?
- yes
- additional info
- First published online on 29 Dec. 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
- 394bbf8c-04b3-428d-9cf6-7b53ecc12b0e (old id 1744864)
- date added to LUP
- 2016-04-01 10:41:37
- date last changed
- 2022-01-26 01:35:49
@article{394bbf8c-04b3-428d-9cf6-7b53ecc12b0e, abstract = {{Two multiblock copoly(arylene ether sulfone)s with similar block lengths and ion exchange capacities (IECs) were prepared by a coupling reaction between a non-sulfonated precursor block and a highly sulfonated precursor block containing either fully disulfonated diarylsulfone or fully tetrasulfonated tetraaryldisulfone segments. The latter two precursor blocks were sulfonated via lithiation-sulfination reactions whereby the sulfonic acid groups were exclusively placed in ortho positions to the many sulfone bridges, giving these blocks IECs of 4.1 and 4.6 meq·g−1, respectively. Copolymer membranes with IECs of 1.4 meq·g−1 displayed well-connected hydrophilic nanophase domains and had decomposition temperatures at, or above, 300 °C under air. The copolymer with the tetrasulfonated tetraaryldisulfone segments showed a proton conductivity of 0.13 S·cm−1 at 80 °C under fully humidified conditions, and surpassed that of a perfluorosulfonic acid membrane (NRE212) by a factor of 5 at –20 °C over time.}}, author = {{Takamuku, Shogo and Jannasch, Patric}}, issn = {{1022-1336}}, keywords = {{polymer electrolyte fuel cell membranes; sulfonations; amphiphilic block copolymers; ionomers; polycondensation}}, language = {{eng}}, number = {{5}}, pages = {{474--480}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Macromolecular Rapid Communications}}, title = {{Fully aromatic block copolymers for fuel cell membranes with densely sulfonated nanophase domains}}, url = {{http://dx.doi.org/10.1002/marc.201000683}}, doi = {{10.1002/marc.201000683}}, volume = {{32}}, year = {{2011}}, }