Proton exchange membranes based on sulfonated poly(phthalazinone ether ketone)s/aminated polymer blends

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DOIResolve DOI: http://doi.org/10.1016/j.ssi.2004.08.009
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TypeArticle
Journal titleSolid State Ionics
Volume176
Issue3-4
Pages409415; # of pages: 7
SubjectAcid-base blend; Aminated polymer; Aminated polysulfone; Blend membrane; Fuel cell; Ionomer; Poly(phthalazinone ether ketone)s; Proton exchange membrane; Sulfonated poly(arylene ether ketone); Sulfonated polyphthalazinone
AbstractAcid–base blend proton exchange membrane films were prepared from sulfonated poly(phthalazinone ether ketone)s (SPPEK)s, either polymerized from sulfonated monomer (M-SPPEK) or post-sulfonated (P-SPPEK), and three kinds of aminated polysulfones, namely: Udel® PSf aminated ortho to ether linkage (ortho-O-APSf), PSf phenylmethylene aminated ortho to the sulfone linkage (ortho-S-PMAPSf), or 6F polysulfone aminated ortho to the sulfone linkage (ortho-S-6F-APSf). Films were prepared by casting mixed N,N-dimethylacetamide (DMAc) solutions of (SPPEK)s in ammonium or sodium salt form and aminated polysulfones, followed by treatment of the blend membrane films in aqueous sulfuric acid. The blend membrane films showed slightly lower thermal stabilities than SPPEKs. M-SPPEK-based blend membrane films showed an obvious decrease in proton conductivity compared with their parent sulfonated polymer, whereas the P-SPPEK-based blend membrane films showed similar proton conductivities to their parent sulfonated polymer from room temperature to about 80 °C. All blend membrane films showed increased swelling stability. Keywords: Sulfonated poly(arylene ether ketone); Proton exchange membrane; Acid-base blend; Sulfonated polyphthalazinone; Aminated polysulfone; Poly(phthalazinone ether ketone)s; Blend membrane; Aminated polymer; Ionomer; Fuel cell
Publication date
AffiliationNational Research Council Canada; NRC Institute for Chemical Process and Environmental Technology
Peer reviewedNo
NPARC number12328033
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Record identifier88d26525-2836-4cd3-bee1-25e22f92b6ca
Record created2009-09-10
Record modified2016-05-09
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