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H+ and Na+ Ion Transport Properties of Sulfonated Poly(2,6-dimethyl-1,4-phenyleneoxide)Membranes
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SYSNO ASEP 0181644 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title H+ and Na+ Ion Transport Properties of Sulfonated Poly(2,6-dimethyl-1,4-phenyleneoxide)Membranes Author(s) Bouzek, K. (CZ)
Moravcová, S. (CZ)
Samec, Zdeněk (UFCH-W) RID, ORCID
Schauer, Jan (UMCH-V) RIDSource Title Journal of the Electrochemical Society. - : Electrochemical Society - ISSN 0013-4651
Roč. 150, č. 6 (2003), s. E329-E336Number of pages 8 s. Language eng - English Country US - United States Keywords H+ and Na+ ion ; sulfonated ; membranes Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA203/99/0575 GA ČR - Czech Science Foundation (CSF) GA104/02/0664 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z4050913 - UMCH-V AV0Z4040901 - UFCH-W Annotation Diffusion coefficients of H+ and Na+ ions in sulphonated poly(2,6-dimethyl-1,4- phenylene oxide) (PPO) intermolecularly complexed with poly(2-butylaniline) (PBA) or poly-[2,2Ž-(m-phenylene)-5,5Ž-bibenzimidazole] (PBI) were evaluated from conductivity and H+/Na+ ion exchange measurements. Ion exchange capacity and transport properties of the PPO membranes with a degree of sulphonation higher than 29 % are comparable to those of Nafion. Intermolecular complexing of sulphonated PPO membrane was found to improve its mechanical and chemical stability. The observed deterioration of ion exchange capacity and ion transport with increasing content of the complexing agent is related to the partial occupation of the fixed sulpho- groups by the tertiary nitrogen groups present in the PBA and PBI. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2004
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