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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
22/08/2013 |
Data da última atualização: |
07/11/2022 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CARVALHO, E. A.; THOMAZ, M. A. A.; ALVES, P. R. P.; SOBRINHA, M. da C. S.; ARAUJO, P. P. M. de; ANTONIO, A. D.; EL-HUSNY, J. C.; AZEVEDO, R. |
Afiliação: |
EUDES DE ARRUDA CARVALHO, CPATU; ADEPARÁ; ADEPARÁ; ADEPARÁ; ADEPARÁ; ADEPARÁ; JAMIL CHAAR EL HUSNY, CPATU; RONI DE AZEVEDO, CPATU. |
Título: |
Ocorrência da "soja louca II" no estado do Pará. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Tropical Plant Pathology, v. 36, p. 1305, ago. 2011. Suplemento. |
Idioma: |
Português |
Notas: |
Edição dos resumos do 44º Congresso Brasileiro de Fitopatologia, 2011, Bento Gonçalves. Resumo 1175. |
Palavras-Chave: |
Pará. |
Thesagro: |
Praga; Soja. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/88343/1/p1305.pdf
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Marc: |
LEADER 00747nam a2200229 a 4500 001 1964537 005 2022-11-07 008 2011 bl uuuu u00u1 u #d 100 1 $aCARVALHO, E. A. 245 $aOcorrência da "soja louca II" no estado do Pará.$h[electronic resource] 260 $aTropical Plant Pathology, v. 36, p. 1305, ago. 2011. Suplemento.$c2011 500 $aEdição dos resumos do 44º Congresso Brasileiro de Fitopatologia, 2011, Bento Gonçalves. Resumo 1175. 650 $aPraga 650 $aSoja 653 $aPará 700 1 $aTHOMAZ, M. A. A. 700 1 $aALVES, P. R. P. 700 1 $aSOBRINHA, M. da C. S. 700 1 $aARAUJO, P. P. M. de 700 1 $aANTONIO, A. D. 700 1 $aEL-HUSNY, J. C. 700 1 $aAZEVEDO, R.
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Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
06/12/2011 |
Data da última atualização: |
11/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ALVES, T. V. G.; TAVARES, E. J. M.; AOUADA, F. A.; NEGRÃO, C. A. B.; OLIVEIRA, M. E. C.; DUARTE JÚNIOR, A. P.; COSTA, C. E. F. da; SILVA JÚNIOR, J. O. C.; COSTA, R. M. R. |
Afiliação: |
TAÍS VANESSA AGBBAY ALVES, UFPA; ERALDO JOSE MADUREIRA TAVARES, CPATU; FAUZE AHMAD AOUADA, USP; CHALES ALBERTO BRITO NEGRÃO, UFPA; MARCOS ENE CHAVES OLIVEIRA, USP / CPATU; ANIVALDO PEREIRA DUARTE JÚNIOR, UFPA; CARLOS EMMERSON FERREIRA DA COSTA, UFPA; JOSÉ OTÁVIO CARRÉRA SILVA JUNIOR, UFPA; ROSEANE MARIA RIBEIRO COSTA, UFPA. |
Título: |
Thermal analysis characterization of PAAm-co-MC hydrogels. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Journal of Thermal Analysis and Calorimetry, v. 106, n. 3, p. 717-724, 2011. |
DOI: |
10.1007/s10973-011-1572-z |
Idioma: |
Inglês |
Conteúdo: |
This paper reports the thermal characterization of polyacrylamide-co-methylcellulose hydrogels and the constituent monomers (acrylamide and methylcellulose). Polymeric materials can be used to produce hydrogels, which can be natural, synthetic, or a mixture. The hydrogels described here were obtained by free radical polymerization, in the presence of N,N0-methylene-bisacrylamide as a cross-linker agent. Four acrylamide concentrations were used for the synthesis of hydrogels: 3.6, 7.2, 14.7, and 21.7% (w/v). The materials so obtained were analyzed by TG, DTG, DSC, and FT-IR. The TG curves of acrylamide and methylcellulose showed three mass loss events. In DSC curves, the acrylamide exhibited one melting peak at 84.5 C, and methylcellulose indicated one exothermic event. Nevertheless, acrylamide was considered more stable than methylcellulose. The TG curves of the hydrogels exhibited three mass loss events, and on the DSC curves, three endothermic events were observed. It was verified that the different acrylamide proportions influenced the thermic behavior of hydrogels, and that the authors considered the 7.2% hydrogel a promising drug carrier system. The absorption bands were well defined, confirming the presence of the functional groups in the samples. |
Palavras-Chave: |
Análise térmica; Hidrogel. |
Categoria do assunto: |
W Química e Física |
Marc: |
LEADER 02040naa a2200253 a 4500 001 1908634 005 2022-11-11 008 2011 bl uuuu u00u1 u #d 024 7 $a10.1007/s10973-011-1572-z$2DOI 100 1 $aALVES, T. V. G. 245 $aThermal analysis characterization of PAAm-co-MC hydrogels.$h[electronic resource] 260 $c2011 520 $aThis paper reports the thermal characterization of polyacrylamide-co-methylcellulose hydrogels and the constituent monomers (acrylamide and methylcellulose). Polymeric materials can be used to produce hydrogels, which can be natural, synthetic, or a mixture. The hydrogels described here were obtained by free radical polymerization, in the presence of N,N0-methylene-bisacrylamide as a cross-linker agent. Four acrylamide concentrations were used for the synthesis of hydrogels: 3.6, 7.2, 14.7, and 21.7% (w/v). The materials so obtained were analyzed by TG, DTG, DSC, and FT-IR. The TG curves of acrylamide and methylcellulose showed three mass loss events. In DSC curves, the acrylamide exhibited one melting peak at 84.5 C, and methylcellulose indicated one exothermic event. Nevertheless, acrylamide was considered more stable than methylcellulose. The TG curves of the hydrogels exhibited three mass loss events, and on the DSC curves, three endothermic events were observed. It was verified that the different acrylamide proportions influenced the thermic behavior of hydrogels, and that the authors considered the 7.2% hydrogel a promising drug carrier system. The absorption bands were well defined, confirming the presence of the functional groups in the samples. 653 $aAnálise térmica 653 $aHidrogel 700 1 $aTAVARES, E. J. M. 700 1 $aAOUADA, F. A. 700 1 $aNEGRÃO, C. A. B. 700 1 $aOLIVEIRA, M. E. C. 700 1 $aDUARTE JÚNIOR, A. P. 700 1 $aCOSTA, C. E. F. da 700 1 $aSILVA JÚNIOR, J. O. C. 700 1 $aCOSTA, R. M. R. 773 $tJournal of Thermal Analysis and Calorimetry$gv. 106, n. 3, p. 717-724, 2011.
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