;wherein Ar1 has formula,; ;wherein X is spiro-bis-indanile (SBI) (b) or BPAF (c) having formulas:; ;and wherein Y is H or SO3H, andAr2 has formula; ;wherein W is CO or SO2, and Y is H or SO3H, wherein Z is OH or Cl; and wherein at least one between Ar1 or Ar2 comprise at least one sulfonic group; and wherein n is an integer comprised between 2 and 50. A method for the production of such membrane is also described."/>
SYNTHESIS AND CHARACTERIZATION OF A NOVEL PROTON EXCHANGE MEMBRANE (PEM) FOR APPLICATIONS IN FUEL CELLS
A fuel cell membrane is described comprising at least one sulfonated aromatic polyether copolymer comprising a poly-arylen-ether-ketone (PEK) moiety or sulfonated derivatives thereof, deriving from spiro-bis-indane or 4,4′-(hexafluoroisopropylidene)diphenol (BPAF), and an arylene-sulfone, or an arylene-ketone or sulfonated derivative thereof; said copolymer having the following formula (1):; ;wherein Ar1 has formula,; ;wherein X is spiro-bis-indanile (SBI) (b) or BPAF (c) having formulas:; ;and wherein Y is H or SO3H, andAr2 has formula; ;wherein W is CO or SO2, and Y is H or SO3H, wherein Z is OH or Cl; and wherein at least one between Ar1 or Ar2 comprise at least one sulfonic group; and wherein n is an integer comprised between 2 and 50. A method for the production of such membrane is also described.
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