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Fully Aromatic Copolyethers for High Temperature Polymer Electrolyte Membrane Fuel Cells
Author(s) -
Daletou M. K.,
Geormezi M.,
Pefkianakis E. K.,
Morfopoulou C.,
Kallitsis J. K.
Publication year - 2010
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.200900032
Subject(s) - electrolyte , phosphoric acid , biphenyl , polymer , thermal stability , chemical engineering , materials science , copolymer , proton exchange membrane fuel cell , membrane , polymer electrolytes , atmospheric temperature range , fuel cells , chemical stability , polymer chemistry , chemistry , organic chemistry , composite material , ionic conductivity , electrode , thermodynamics , biochemistry , physics , engineering , metallurgy
New aromatic polyethers containing diphenylpyridine, phosphinoxide and tetramethyl‐biphenyl units have been synthesised employing various comonomers' ratios affording a complete series of soluble high molecular weight copolymers. Their properties in respect to their potential as electrolytes for high temperature PEM fuel cells were thoroughly investigated. All materials exhibit excellent film forming properties and mechanical integrity, high thermal and oxidative stability in combination with the ability to absorb phosphoric acid resulting in conductivities in the range of 10 –2 S cm –1 . A discussion on the effect of the chemical structure on the properties is also depicted herein.