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dc.contributor.author헨켄스마이어디억-
dc.contributor.author조형래-
dc.contributor.author김형준-
dc.contributor.authorCarolina Nunes Kirchner-
dc.contributor.authorJanine Leppin-
dc.contributor.authorAlexander Dyck-
dc.contributor.author장종현-
dc.contributor.author조은애-
dc.contributor.author남석우-
dc.contributor.author임태훈-
dc.date.accessioned2015-12-03T00:46:18Z-
dc.date.available2015-12-03T00:46:18Z-
dc.date.issued201203-
dc.identifier.citationVOL 97, NO 3, 264-272-
dc.identifier.issn01413910-
dc.identifier.other36827-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/42010-
dc.description.abstractPolybenzimidazolium hydroxides are of potential interest for the use in alkaline anion exchange membrane fuel cells (AAEMFC). Introduction of an ether group in para-position of the 2-phenyl substituent improves the mesomeric stabilization of imidazolium cations, and O-PBI seems to be more stable than meta-PBI under alkaline conditions. NMR, IR and XPS analysis show a structural change when the iodide form is exchanged into the hydroxide form. Surprisingly, this structural change is subject to a pH sensitive equilibrium and the pure imidazolium form is retained immediately when the pH is lowered. The molecular structure at high pH is either the 2-carbinol or the amineeamide. Further hydrolysis necessitates excess hydroxide.-
dc.publisherPolymer degradation and stability-
dc.subject2-Phenyl-imidazolium hydroxide-
dc.subjectNMR-
dc.subjecthydrolysis-
dc.subjectPolybenzimidazole-
dc.subjectAnion exchange membrane-
dc.subjectPolymer Electrolyte-
dc.titlePolybenzimidazolium hydroxides - Structure, stability and degradation-
dc.typeArticle-
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