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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
10/11/2023 |
Data da última atualização: |
15/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GIROTO, A. S.; VALLE, S. F.; BORGES, R.; COLNAGO, L. A.; RIBEIRO, T. S.; JABLONOWSKI N. D.; RIBEIRO, C.; MATTOSO, L. H. C. |
Afiliação: |
Institute of Bio- and Geosciences, IBG-2: Plant Sciences; LUIZ ALBERTO COLNAGO, CNPDIA; Federal University of São Carlos; Institute of Bio- and Geosciences, IBG-2: Plant Sciences; CAUE RIBEIRO DE OLIVEIRA, CNPDIA; LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA. |
Título: |
Revealing the Structure Formation on Polyglycerol Citrate Polymers - An Environmentally Friendly Polyester as a Seed-Coating Material. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Polymers, v. 15, 4303, 2023. |
Páginas: |
16 p. |
DOI: |
https://doi.org/10.3390/polym15214303 |
Idioma: |
Português |
Conteúdo: |
Abstract: A detailed structural investigation of a promising bio-based polymer, polyglycerol citrate polyester, obtained by the bulk polycondensation of glycerol (Gly) against citric acid (Cit) under mild reaction was performed. The reaction in conditions with and without catalyst use (sulfuric acid, H2SO4 ) was investigated, showing evidence that it is possible to modify the polymer solubility according to the ratio and catalyst utilization. 13C and 1H NMR indicated that synthesis catalyzed with Cit excess leads to higher esterification degrees of citrate groups. In contrast, the Gly moieties are more prominent in catalyzed polymers regardless of the excess monomers. Overall, a successful conversion of Gly and Cit into polyesters was attained even without catalysis, enabling a simple route for the large-scale production of this green material to be used as a coating material. This polymer has been shown to be well-suited for coating seeds and might be a promising material for similar agricultural applications. Tests on soybean seed coating with a PGCit solution of 75% indicated that the seed quality and germination rate were not affected by the PGCit coating, concluding that this polymer is suitable for this application. |
Palavras-Chave: |
Coating polymer; Polycondensation; Polyglycerol; Sustainable polymer. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158176/1/P-Revealing-the-Structure-Formation-on-Polyglycerol-Citrate.pdf
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Marc: |
LEADER 02075naa a2200277 a 4500 001 2158176 005 2024-01-15 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3390/polym15214303$2DOI 100 1 $aGIROTO, A. S. 245 $aRevealing the Structure Formation on Polyglycerol Citrate Polymers - An Environmentally Friendly Polyester as a Seed-Coating Material.$h[electronic resource] 260 $c2023 300 $a16 p. 520 $aAbstract: A detailed structural investigation of a promising bio-based polymer, polyglycerol citrate polyester, obtained by the bulk polycondensation of glycerol (Gly) against citric acid (Cit) under mild reaction was performed. The reaction in conditions with and without catalyst use (sulfuric acid, H2SO4 ) was investigated, showing evidence that it is possible to modify the polymer solubility according to the ratio and catalyst utilization. 13C and 1H NMR indicated that synthesis catalyzed with Cit excess leads to higher esterification degrees of citrate groups. In contrast, the Gly moieties are more prominent in catalyzed polymers regardless of the excess monomers. Overall, a successful conversion of Gly and Cit into polyesters was attained even without catalysis, enabling a simple route for the large-scale production of this green material to be used as a coating material. This polymer has been shown to be well-suited for coating seeds and might be a promising material for similar agricultural applications. Tests on soybean seed coating with a PGCit solution of 75% indicated that the seed quality and germination rate were not affected by the PGCit coating, concluding that this polymer is suitable for this application. 653 $aCoating polymer 653 $aPolycondensation 653 $aPolyglycerol 653 $aSustainable polymer 700 1 $aVALLE, S. F. 700 1 $aBORGES, R. 700 1 $aCOLNAGO, L. A. 700 1 $aRIBEIRO, T. S. 700 1 $aJABLONOWSKI N. D. 700 1 $aRIBEIRO, C. 700 1 $aMATTOSO, L. H. C. 773 $tPolymers$gv. 15, 4303, 2023.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
30/08/2006 |
Data da última atualização: |
10/01/2020 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
BARBOSA, F. R.; SILVA, C. S. B. da; CARVALHO, G. K. de L; GERVÁSIO, R. de C. R. G. |
Afiliação: |
FLAVIA RABELO BARBOSA, CPATSA. |
Título: |
Estudo comparativo entre o nível populacional de Tripes na bordadura e interior da parcela de mangueira em produção integrada. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
In: SEMINÁRIO BRASILEIRO DE PRODUÇÃO INTEGRADA DE FRUTAS, 8., 2006, Vitória. Anais... Vitória: INCAPER, 2006. |
Páginas: |
p. 200-201. |
Idioma: |
Português |
Notas: |
Editor: David dos Santos Martins. |
Conteúdo: |
Com o objetivo de aplicação na Produção Integrada de Manga (PI-Manga), comparou-se o nível populacional desses insetos na bordadura e no interior das parcelas, em pomares comerciais. |
Palavras-Chave: |
Selenothrips rubrocintus. |
Thesagro: |
Manga; População; Praga; Produção Integrada. |
Thesaurus NAL: |
Frankliniella schultzei. |
Categoria do assunto: |
A Sistemas de Cultivo |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208536/1/ESTUDO-COMPARATIVO-ENTRE-O-NiVEL-POPULACIONAL-DE-TRIPES-NA.pdf
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Marc: |
LEADER 01015nam a2200241 a 4500 001 1149571 005 2020-01-10 008 2006 bl uuuu u00u1 u #d 100 1 $aBARBOSA, F. R. 245 $aEstudo comparativo entre o nível populacional de Tripes na bordadura e interior da parcela de mangueira em produção integrada. 260 $aIn: SEMINÁRIO BRASILEIRO DE PRODUÇÃO INTEGRADA DE FRUTAS, 8., 2006, Vitória. Anais... Vitória: INCAPER$c2006 300 $ap. 200-201. 500 $aEditor: David dos Santos Martins. 520 $aCom o objetivo de aplicação na Produção Integrada de Manga (PI-Manga), comparou-se o nível populacional desses insetos na bordadura e no interior das parcelas, em pomares comerciais. 650 $aFrankliniella schultzei 650 $aManga 650 $aPopulação 650 $aPraga 650 $aProdução Integrada 653 $aSelenothrips rubrocintus 700 1 $aSILVA, C. S. B. da 700 1 $aCARVALHO, G. K. de L 700 1 $aGERVÁSIO, R. de C. R. G.
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