Thermal behavior of nafion membranes

dc.creatorAlmeida, Selma Helena de
dc.creatorKawano, Yoshio
dc.creatorAlmeida, Selma Helena de
dc.creatorKawano, Yoshio
dc.date.accessioned2013-08-01T20:06:35Z
dc.date.accessioned2022-10-07T18:01:39Z
dc.date.available2013-08-01T20:06:35Z
dc.date.available2022-10-07T18:01:39Z
dc.date.created2013-08-01T20:06:35Z
dc.date.issued1999
dc.identifier1388-6150
dc.identifierhttp://www.repositorio.ufba.br/ri/handle/ri/12407
dc.identifierv. 58
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/4010995
dc.description.abstractThe thermal behavior of Nafion-117 membranes was investigated by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). TG measurements revealed that the mechanism of thermal degradation of a Nafion membrane in the acid form is different from that of Nafion in the sodium form. The DSC curves for the first heating, for both acid and salt forms, display two endothermic peaks, near 120 and 230oC. The high-temperature peak was assigned to the crystalline domains melting in Nafion, and the low-temperature peak was attributed to a transition into ionic clusters, since this transition exhibits significant changes depending on the nature of the counterion and the degree of hydration.
dc.languageen
dc.publisherJournal of Thermal Analysis and Calorimetry
dc.sourcehttp://link-springer-com.ez10.periodicos.capes.gov.br/content/pdf/10.1023%2FA%3A1010196226309.pdf
dc.titleThermal behavior of nafion membranes
dc.typeArtigo de Periódico


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