Sulfonated-perfluorocyclobutane polyelectrolyte membranes...

Details Sulfonated-perfluorocyclobutane polyelectrolyte membranes... Sulfonated-perfluorocyclobutane polyelectrolyte membranes...

2011-06-14

2011-06-14

Mulcahy, Peter D. (Department: 1764)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C521S027000, C525S326200, C428S373000, C428S401000

Reexamination Certificate

active

07960046

ABSTRACT:
A process for preparing a polymer comprising sulfonating a perfluorocyclobutane polymer with a sulfonating agent to form a sulfonated perfluorocyclobutane polymer, wherein the sulfonating agent comprises oleum, SO3or a combination thereof is provided. A process for preparing proton exchange membranes and fuel cells comprising the proton exchange membrane are also provided.

REFERENCES:
patent: 5037917 (1991-08-01), Babb et al.
patent: 5910378 (1999-06-01), Debe et al.
patent: 6183668 (2001-02-01), Debe et al.
patent: 6384167 (2002-05-01), DesMarteau et al.
patent: 6444343 (2002-09-01), Prakash et al.
patent: 6559237 (2003-05-01), Mao et al.
patent: 2001/0018144 (2001-08-01), Watakabe et al.
patent: 2004/0214065 (2004-10-01), Kanaoka et al.
patent: 2005/0058864 (2005-03-01), Goebel
patent: 2003-535929 (2003-12-01), None
patent: 2005-179380 (2005-07-01), None
patent: 2004/051776 (2004-06-01), None
Functional Fluoropolymers for Fuel Cell Membranes; R. Souzy, B. Ameduri, B. Boutevin, G. Gebel, P. Capron; Solid State Ionics 176 (2005); pp. 2839-2848.
Souzy et al., Solid State Ionics, vol. 176, pp. 2839-2848 (2005).
Smith et al., Macromolecules, vol. 29, pp. 852-860 (1996).
Smith et al., Fluorine Chemistry, vol. 104, p. 109 (2000).
Ford, L.A. et al., “New Aromatic Perfluorovinyl Ether Monomers Containing the Sulfonimide Acid Functionality,” Polymeric Materials Science and Engineering; 2000; pp. 10-11; 83; American Chemical Society.
Souzy, R. et al., “Synthesis and (co)polymerization of monofluoro, difluoro, trifluorostyrene and ((trifluorovinyl)oxy) benzene,” Prog. Polym. Sci. xx (2003) pp. 1-32.
Souzy, R. et al., “Functional fluoropolymers for fuel cell membranes,” Prog. Polym. Sci. 30, 2005, pp. 644-687.

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