Viscoelastic phase diagram of fluorinated and grafted polymer films and proton-exchange membranes for fuel cell applications (pages 1139–1148)
Yves Leterrier, Jérémy Thivolle, Fabiane Oliveira, Jan-Anders Månson, Lorenz Gubler, Hicham Ben youcef, Lukas Bonorand and Günther Scherer
Version of Record online: 21 MAY 2013 | DOI: 10.1002/polb.23309
Proton exchange membranes for fuel cell applications were developed based on fluorinated, radiation grafted, and crosslinked polymers. These polymers exhibit intricate hygro-thermo-mechanical properties. A phase diagram was developed to map critical transitions in viscoelastic behavior and to investigate the influence of the grafted and crosslinked chemistry on these transitions. A deeper understanding of the stability of such membranes under different conditions should facilitate the construction of more robust fuel cells.