Self-emulsifying polymerization (SEP) of 3,6-dioxa-Δ7-4-trifluoromethyl perfluorooctyl trifluoromethyl sulfonimide with tetrafluoroethylene

Sulfonated Fluorovinylene Aromatic Ether Polymers for Proton Exchange Membranes2

“…Specifically, McGrath reported increased thermal stability and significantly reduced water uptake in PEMs by incorporating the hexafluoropropane linkage into the backbone of sulfonated poly(arylene ether sulfone)s (SPAES) [8]. DesMarteau has also reported the use of perfluorosulfonimide ionomers synthesized via copolymerization of perfluorovinylethersulfonimide monomer with tetrafluoroethylene [9]. These ionomers have higher temperature stability and show better proton conductivity than Nafion .…”