84271-36-3Relevant articles and documents
Copolymerization of ethylene, tetrafluoroethylene, and an olefin-containing fluorosulfonyl fluoride: Synthesis of high-proton-conductive membranes for fuel-cell applications
Yang, Zhen-Yu,Rajendran, Raj G.
, p. 564 - 567 (2005)
Excellent thermal stability and mechanical properties are exhibited by high-proton-conductive membranes synthesized by a facile copolymerization of tetrafluoro-ethylene, ethylene, and CH2=CHCF2CF 2O-CF2CF2SO2F (see scheme and AFM image). These membranes have been successfully used in a direct MeOH fuel cell.
PARTIALLY FLUORINATED SULFINIC ACID MONOMERS AND THEIR SALTS
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Page/Page column 12, (2012/06/30)
Described herein is a composition according to formula I or its precursor, formula II: CX1X3=CX2-(R1)p-CZ1 Z2-SO2M (I) wherein X1, X2, and X3 are independently selected from H, F, Cl, Br, I, CF3 and CH3, and wherein at least one of X1, X2, or X3 is a H; R1 is a linking group; Z1 and Z2 are independently selected from F, Cl, Br, I, CF3, and a perfluoroalkyl group; p is 0 or 1; and M is a cation; and CX4X1X3-CX5X2-(R1)p-CZ1Z2-SO2M (II) wherein X1, X2, and X3 are independently selected from H, F, Cl, Br, I, CF3 and CH3, wherein at least one of X1, X2, or X3 is a H, and X4 and X5 are independently selected from H, F, Cl, Br and I; R1 is a linking group; Z1 and Z2 are independently selected from F, Cl, Br, I, CF3, and a perfluoroalkyl group, p is 0 or 1; and M is selected from F, and a cation.