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Cited by 451

The DOI matches its Crossref record.

Synthesis and Characterization of Poly(phenylene)-Based Anion Exchange Membranes for Alkaline Fuel Cells

Hibbs, Michael R., Fujimoto, Cy H., Cornelius, Christopher J.·2009·Macromolecules
DOI 10.1021/ma901538c
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Abstract

Cationic polymer membranes that conduct free anions comprise an enabling area of research for alkaline membrane fuel cells and other solid-state electrochemical devices that operate at high pH. The synthesis of anion exchange membranes based on a poly(phenylene) backbone prepared by a Diels−Alder reaction is demonstrated. The poly(phenylene)s have benzylic methyl groups that are converted to bromomethyl groups by a radical reaction. Cationic polymers result from conversion of the bromomethyl groups to ionic moieties by quaternization with trimethylamine in the solid state. The conversion to benzyltrimethylammonium groups is incomplete as evidenced by the differences between the IEC values measured by titration and the theoretical IECs based on 1 H NMR measurements. The anion exchange membranes formed from these polymers have hydroxide ion conductivities as high as 50 mS/cm in liquid water, and they are stable under highly basic conditions at elevated temperatures.

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Authors
Hibbs, M. R., Fujimoto, C. H., & Cornelius, C. J.
Venue
Macromolecules
Publisher
American Chemical Society (ACS)
Published
2009-11-10
Volume
42
Issue
21
Pages
8316-8321
ISSN
  • 0024-9297 (ISSN-L)
  • 1520-5835
DOI
10.1021/ma901538c
OpenAlex
W1987726059
Cited by
451
References
0
FWCI
23.23
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.