Thermal crosslinking of aromatic polyethers bearing pyridine groups for use as high temperature polymer electrolytes

▸ Towards the development of high temperature polymer electrolytes for PEMFCs. ▸ Aromatic polyethers bearing polar pyridine groups and crosslinkable side chain double bonds. ▸ Post-polymerization thermal crosslinking without the use of thermal initiators. ▸ Crosslinked membranes with enhanced thermo-mechanical properties. ▸ Fuel cell performance at temperatures up to 220 °C.