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Poly(alkylene biguanides) as Proton Conductors for High‐Temperature PEMFCs
Author(s) -
Britz Jochen,
Meyer Wolfgang H.,
Wegner Gerhard
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200902834
Subject(s) - materials science , electrical conductor , proton , chemical engineering , composite material , physics , engineering , quantum mechanics
Poly(alkylene biguanides) are novel high‐temperature proton conductors. This long‐known class of polymers is presented as surprisingly stable high‐temperature proton‐conducting materials in the form of water‐free HCl conjugates. Proton conductivity is dominated by free volume relaxation. Application in the context of fuel‐cell membranes is discussed.