|
|
Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
22/12/1999 |
Data da última atualização: |
22/12/1999 |
Autoria: |
MALMONGE, J. A.; MATTOSO, L. H. C. |
Afiliação: |
USP-IFSC; EMBRAPA-CNPDIA. |
Título: |
Conductivity of polyaniline induced by X-rays radiation. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996. |
Páginas: |
p.205. |
Idioma: |
Inglês |
Notas: |
Ref.P2.168. |
Conteúdo: |
Thin films cast from chemically synthesized polyaniline were exposed to ionizing X-rays radiaton and characterized by ultraviolet-visible (UV-Vis) spectroscopy, electrical conductivity, radiation induced conductivity and solubility measurements. Samples irradiated under vacuum or dry oxygen atmosphere did not have their electronic spectra changed (maximum wavelength at 630nm). However, under ambient or high humidity atmospheres the energy of the excitonic transition was decreased (max at approximatelly 1000nm), accompanied by a great conductivity increase up to 1S/cm. Such conductivity suffers a small decay, remaining constant at about 10E-2 S/cm for several days. Radiation induced conductivity (RIC) measurements indicated a large increase in current as a function of time for films irradiated under high relative humidity atmosphere, consistent with this phenomenon. This behavior seems to indicate that doping of polyaniline can be achieved by X-rays radiation which might be of interest for applications on lithography and microelectronics. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01587naa a2200157 a 4500 001 1027096 005 1999-12-22 008 1996 bl uuuu u00u1 u #d 100 1 $aMALMONGE, J. A. 245 $aConductivity of polyaniline induced by X-rays radiation. 260 $c1996 300 $ap.205. 500 $aRef.P2.168. 520 $aThin films cast from chemically synthesized polyaniline were exposed to ionizing X-rays radiaton and characterized by ultraviolet-visible (UV-Vis) spectroscopy, electrical conductivity, radiation induced conductivity and solubility measurements. Samples irradiated under vacuum or dry oxygen atmosphere did not have their electronic spectra changed (maximum wavelength at 630nm). However, under ambient or high humidity atmospheres the energy of the excitonic transition was decreased (max at approximatelly 1000nm), accompanied by a great conductivity increase up to 1S/cm. Such conductivity suffers a small decay, remaining constant at about 10E-2 S/cm for several days. Radiation induced conductivity (RIC) measurements indicated a large increase in current as a function of time for films irradiated under high relative humidity atmosphere, consistent with this phenomenon. This behavior seems to indicate that doping of polyaniline can be achieved by X-rays radiation which might be of interest for applications on lithography and microelectronics. 700 1 $aMATTOSO, L. H. C. 773 $tIn: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registros recuperados : 55 | |
9. | | ALVES, W. F.; MALMONGE, J. A.; MATTOSO, L. H. C. Non-isothermal decomposition kinetics of polyaniline and its derivatives. In: INTERNATIONAL CONGRESS ON THERMAL ANALYSIS AND CALORIMETRY - ICTAC, 14., 2008, São Pedro; CONGRESSO BRASILEIRO DE ANÁLISE TÉRMICA E CALORIMETRIA - CBRATEC, 6., 2008, São Pedro. Resumos... São Paulo: ICTAC/ABRATEC, 2008.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Instrumentação. |
| |
14. | | MARTIN, E. S.; MALMONGE, J. A.; MALMONGE, L. F.; GALIANI, P. D.; MATTOSO, L. H. C. Blendas de polianilina com borracha natural obtida por polimerização via emulsão In: Congresso Brasileiro de Polímeros, 9., 2007, Campina Grande, PB. Resumos... [São Carlos: ABPol, 2007.]. p. 77. 1 CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Instrumentação. |
| |
15. | | SILVA, M. J.; CENA, C. R.; SANCHES, A. O.; MATTOSO, L. H. C.; MALMONGE, J. A. DBSA to improve the compatibility, solubility, and infusibility of cellulose nanowhiskers modified by polyaniline in reinforcing a natural rubber-based nanocomposite. Polymer Bulletin, v. 76, n. 7, 2019. 3517-3533 Published online 15/10/2018.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Instrumentação. |
| |
16. | | MALMONGE, J. A.; MEDEIRO, E. S.; ROSA, M. F.; WOOD, D. F.; MATTOSO, L. H. C. Compósito de borracha natural proveniente da guayule reforçado com microfibras de celulose. In: CONGRESSO BRASILEIRO DE POLIMEROS, 10., 2009, Foz do Iguaçu, PR. Livro de resumos... São Carlos: ABPol, 2009. p. 106.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Instrumentação. |
| |
17. | | MALMONGE, J. A.; MEDEIROS, E. S.; ROSA, M. F.; WOOD, D.; MATTOSO, L. H. C. Compósito de borracha natural proveniente da guayule reforçado com microfibras de celulose. In: CONGRESSO BRASILEIRO DE POLIMEROS, 10., 2009, Foz do Iguaçu, PR. Anais... São Carlos: ABPol , 2009. 1 CD-ROM.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Instrumentação. |
| |
18. | | GALIANI, P. D.; MALMONGE, J. A.; SOARES, B. G.; MATTOSO, L. H. C. Studies on thermal-oxidative degradation behaviours of raw natural rubber: PRI and thermogravimetry analysis. Plastics, rubber and composites,[S. l.], v. 42, n. 8, p. 334-339, 2013.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Instrumentação. |
| |
20. | | GALIANI, P. D.; NASTRI, S.; MALMONGE, J. A.; MATTOSO, L. H. C. Estudo da influência da sangria acumulada e das condições das tigelas utilizadas para coleta do látex, nas propriedades da borracha natural - Hevea brasiliensis. In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS - CBECiMat, 18., 2008, Porto de Galinhas, BA. Anais... [S. l.: s. n.], 2008. 1 CD-ROM.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Instrumentação. |
| |
Registros recuperados : 55 | |
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|