Carboxylated and sulfonated poly(arylene-co-arylene sulfone)s: Thermostable 
polyelectrolytes for fuel cell applications

Poppe, D.; Frey, H.; Kreuer, K.-D.; Heinzel, A.; Mülhaupt, R.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Carboxylated and sulfonated poly(arylene-co-arylene sulfone)s: Thermostable polyelectrolytes for fuel cell applications

MPS-Authors

/persons/resource/persons280187

Kreuer, K.-D.
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Poppe, D., Frey, H., Kreuer, K.-D., Heinzel, A., & Mülhaupt, R. (2002). Carboxylated and sulfonated poly(arylene-co-arylene sulfone)s: Thermostable polyelectrolytes for fuel cell applications. Macromolecules, 35(21), 7936-7941.

Cite as: https://hdl.handle.net/21.11116/0000-000E-E94D-6

Abstract

The synthesis of novel soluble copolyarylenes, their
functionalization with sulfonic and carboxylic acid groups, and
the determination of fuel cell relevant parameters (swelling
behavior, methanol permeation, and ionic conductivity) are
described. The Ni(O)-catalyzed homocoupling reaction of aryl
chlorides was employed for the polymerizations. Carboxylic acid
groups were incorporated by copolymerization of methyl 2,5-
dichlorobenzoate and subsequent hydrolysis. The composition was
varied from 53 to 100 mol % carboxylic acid groups. Sulfonic
acid groups were introduced by sulfonation with chlorosulfonic
acid. Flexible and transparent membranes with sulfonic and/or
carboxylic acid groups were prepared that exhibited higher
proton conductivities (values in the range of sigma = 0.11-0.23
S/cm) compared to those of Nafion and sulfonated PEEK as a
result of higher ion exchange capacity and water content.
Incorporation of carboxylic acid groups led to a reduced water
uptake but lower conductivities.