Thermal behavior of nafion membranes
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 1999 |
| Outros Autores: | |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFBA |
| Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/12407 |
Resumo: | Texto completo. Acesso restrito. p. 569-577 |
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Almeida, Selma Helena deKawano, YoshioAlmeida, Selma Helena deKawano, Yoshio2013-08-01T20:06:35Z2013-08-01T20:06:35Z19991388-6150http://www.repositorio.ufba.br/ri/handle/ri/12407v. 58Texto completo. Acesso restrito. p. 569-577The 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.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-08-01T20:06:35Z No. of bitstreams: 1 666666666666666666666.pdf: 154172 bytes, checksum: 52ac4df86246ddb5c33fd36947d46cba (MD5)Made available in DSpace on 2013-08-01T20:06:35Z (GMT). No. of bitstreams: 1 666666666666666666666.pdf: 154172 bytes, checksum: 52ac4df86246ddb5c33fd36947d46cba (MD5) Previous issue date: 1999SalvadorJournal of Thermal Analysis and Calorimetryhttp://link-springer-com.ez10.periodicos.capes.gov.br/content/pdf/10.1023%2FA%3A1010196226309.pdfreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAThermal behavior of nafion membranesJournal of Thermal Analysis and Calorimetryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINAL666666666666666666666.pdf666666666666666666666.pdfapplication/pdf154172https://repositorio.ufba.br/bitstream/ri/12407/1/666666666666666666666.pdf52ac4df86246ddb5c33fd36947d46cbaMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/12407/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT666666666666666666666.pdf.txt666666666666666666666.pdf.txtExtracted texttext/plain20604https://repositorio.ufba.br/bitstream/ri/12407/3/666666666666666666666.pdf.txt35ae390f5820f6bb70432c2caace7e94MD53ri/124072022-07-05 14:03:44.004oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:44Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
| dc.title.pt_BR.fl_str_mv |
Thermal behavior of nafion membranes |
| dc.title.alternative.pt_BR.fl_str_mv |
Journal of Thermal Analysis and Calorimetry |
| title |
Thermal behavior of nafion membranes |
| spellingShingle |
Thermal behavior of nafion membranes Almeida, Selma Helena de |
| title_short |
Thermal behavior of nafion membranes |
| title_full |
Thermal behavior of nafion membranes |
| title_fullStr |
Thermal behavior of nafion membranes |
| title_full_unstemmed |
Thermal behavior of nafion membranes |
| title_sort |
Thermal behavior of nafion membranes |
| author |
Almeida, Selma Helena de |
| author_facet |
Almeida, Selma Helena de Kawano, Yoshio |
| author_role |
author |
| author2 |
Kawano, Yoshio |
| author2_role |
author |
| dc.contributor.author.fl_str_mv |
Almeida, Selma Helena de Kawano, Yoshio Almeida, Selma Helena de Kawano, Yoshio |
| description |
Texto completo. Acesso restrito. p. 569-577 |
| publishDate |
1999 |
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1999 |
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2013-08-01T20:06:35Z |
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2013-08-01T20:06:35Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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http://www.repositorio.ufba.br/ri/handle/ri/12407 |
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1388-6150 |
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v. 58 |
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1388-6150 v. 58 |
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Journal of Thermal Analysis and Calorimetry |
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Journal of Thermal Analysis and Calorimetry |
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http://link-springer-com.ez10.periodicos.capes.gov.br/content/pdf/10.1023%2FA%3A1010196226309.pdf |
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