Premium
Blends of Sulfonated Polysulfone and Poly(ethylene oxide)‐Grafted‐Polyethersulfone as Proton Exchange Membranes for Fuel Cell Applications
Author(s) -
Deimede V.,
Kandilioti G.,
Kallitsis J. K.,
Gregoriou V. G.
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200551139
Subject(s) - polysulfone , ethylene oxide , materials science , chemical engineering , miscibility , crystallinity , membrane , proton exchange membrane fuel cell , polymer , oxide , electrolyte , ionic conductivity , polymer chemistry , peek , fuel cells , composite material , chemistry , copolymer , biochemistry , electrode , engineering , metallurgy
Abstract Blends composed of sulfonated polysulfone (SPSF) and poly(ethylene oxide)‐grafted‐polyethersulfone (PEO‐ g ‐PES) in different compositions have been prepared and studied in terms of fuel cell relevant parameters like thermal behaviour, water uptake and ionic conductivity. Moreover, spectroscopic characterization (FT‐IR) has also been conducted in order to elucidate their miscibility and to investigate the influence of polymer blending on the crystallinity level of the individual components. These blends exhibit very good mechanical properties, a very high water uptake and a high ionic conductivity (4 × 10 −3 S/cm) at ambient temperatures and they are amorphous, a property that facilitates their use as polymer electrolytes in fuel cells.