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| Registros recuperados : 9 | |
| 2. |  | HERMANN, P. S. P.; CARDOSO, L. P.; ALTAFIM, R. A. C.; MURAKAMI, C. R. Surface analysis with atomic force microscopy (AFM) of polyurethane resins derived from castor oil with filler. In: CONGRESSO BRASILEIRO DE MICROSCOPIA DE MATERIAIS - MICROMAT, 7., 2000, São Pedro, SP. MICROMAT 2000: abstracts... São Carlos: [UFSCar], 2000. p. 16., ref. RE004-013.| Biblioteca(s): Embrapa Instrumentação. |
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| 6. | | CONCIANI, W.; CARNEIRO, B. J.; SOARES, M. M.; HERMANN, P. S. P.; CRESTANA, S. Emprego de TDR com sondas multihastes segmentadas para medida de umidade de um perfil de solo Brasilia: EMBRAPA-SPI, 1997 p.169-179 In: SIMPOSIO NACIONAL DE INSTRUMENTACAO AGROPECUARIA, 1., 1996, Sao Carlos. Anais do I SIAGRO. Brasilia: EMBRAPA-SPI, 1997.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 8. | | MOSIEWICKI, M. A.; SCHROEDER, W. F.; LEITE, F. L.; HERMANN, P. S. P.; CURVELO, A. A. S.; ARANGUREN, M. I.; BORRAJO, J. AFM fracture surface study of vinylester and unsaturated polyester based thermosets. Journal of materials science, Norwell, v. 41, n. 18, p. 6154-6158, 2006.| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | BORATO, C. E.; MARTINEZ, C. M. F.; HERMANN, P. S. P.; OLIVEIRA Jr, O. N.; COLNAGO, L. A.; MATTOSO, L. H. C. Utilizacao da tecnica de automontagem para a preparacao de filmes ultrafinos de lisozima Brasilia: EMBRAPA-SPI, 1997 p.145-151 In: SIMPOSIO NACIONAL DE INSTRUMENTACAO AGROPECUARIA, 1., 1996, Sao Carlos. Anaios do I SIAGRO. Brasilia:SPI, 1977.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 9 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
25/01/2005 |
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Data da última atualização: |
26/08/2013 |
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Autoria: |
HERMANN, P. S. P.; VENANCIO, E. C.; MACDIARMID, A. G.; MATTOSO, L. H. C. |
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Título: |
Polyaniline-based sensor obtained by using line patterning technique on plastic. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 16. Porto Alegre, 2004. Anais...Porto Alegre, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
Line patterning technique with metal was used to produce interdigitated electrodes of gold on plastic, which were the base to develop the sensors for volatile organic compounds (VOCs) and water vapor. The sensors were obtained by covering the interdigitated electrodes with a thin film of emeraldine salt by using two methods, by dipping into a solution of Emeraldine-HCSA in hexafluoro-2-propanol and by in situ deposition of polyaniline (Emeraldine-HCI). From the in situ deposited emeraldine-HCI two others sensors were obtained by anion replacement, the Emeraldine-HCSA and Emeraldine-HDBSA. For polyaniline emeraldine salt, the sensors have presented changes in its conductivity when it was removed from stream of dry nitrogen gas and put in the presence of water vapor from the static laboratory air showing a good sensitivity. The changes in the electrical resistance of the sensors were recorded and the sensitivity and reversibility were evaluated. In this process, the anion plays an important role, and Emeraldine-'HCI has shown the highest sensitivity to the humidity present in the laboratory air. The Emeraldine-HCSA sensors have shown good sensitivity when in the presence of polar volatile organic vapors such as chloroform, tetrahydrofuran (THF) and acetone. Therefore, the fine patterning of gold can be used to develop a simple, inexpensive sensor device to portable electronic system. |
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Palavras-Chave: |
Polianilina; Sensores. |
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Thesagro: |
Plástico. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02007naa a2200193 a 4500
001 1028774
005 2013-08-26
008 2004 bl --- 0-- u #d
100 1 $aHERMANN, P. S. P.
245 $aPolyaniline-based sensor obtained by using line patterning technique on plastic.
260 $c2004
520 $aLine patterning technique with metal was used to produce interdigitated electrodes of gold on plastic, which were the base to develop the sensors for volatile organic compounds (VOCs) and water vapor. The sensors were obtained by covering the interdigitated electrodes with a thin film of emeraldine salt by using two methods, by dipping into a solution of Emeraldine-HCSA in hexafluoro-2-propanol and by in situ deposition of polyaniline (Emeraldine-HCI). From the in situ deposited emeraldine-HCI two others sensors were obtained by anion replacement, the Emeraldine-HCSA and Emeraldine-HDBSA. For polyaniline emeraldine salt, the sensors have presented changes in its conductivity when it was removed from stream of dry nitrogen gas and put in the presence of water vapor from the static laboratory air showing a good sensitivity. The changes in the electrical resistance of the sensors were recorded and the sensitivity and reversibility were evaluated. In this process, the anion plays an important role, and Emeraldine-'HCI has shown the highest sensitivity to the humidity present in the laboratory air. The Emeraldine-HCSA sensors have shown good sensitivity when in the presence of polar volatile organic vapors such as chloroform, tetrahydrofuran (THF) and acetone. Therefore, the fine patterning of gold can be used to develop a simple, inexpensive sensor device to portable electronic system.
650 $aPlástico
653 $aPolianilina
653 $aSensores
700 1 $aVENANCIO, E. C.
700 1 $aMACDIARMID, A. G.
700 1 $aMATTOSO, L. H. C.
773 $tIn: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 16. Porto Alegre, 2004. Anais...Porto Alegre, 2004.
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