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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
27/12/2024 |
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Data da última atualização: |
27/12/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FLORINDO, T. M. G.; BRITO, G. F. S.; RESENDE, G.; BARROSO, R. G. M. R.; ARARUNA, T.; ARAUJO, R. T.; GONCALVES, S. B.; MACHADO, F. |
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Afiliação: |
THAYSE M. G. FLORINDO, UNIVERSITY OF BRASÍLIA; GABRIEL F. S. BRITO, UNIVERSITY OF BRASÍLIA; GRACIANE RESENDE, UNIVERSITY OF BRASÍLIA/FEDERAL UNIVERSITY OF GOIÁS; RAÍSSA G. M. R. BARROSO, UNIVERSITY OF BRASÍLIA; THAINÁ ARARUNA, UNIVERSITY OF BRASÍLIA/FEDERAL UNIVERSITY OF GOIÁS; ROBSON T. ARAUJO, UNIVERSITY OF BRASÍLIA; SILVIA BELEM GONCALVES, CNPAE; FABRICIO MACHADO, UNIVERSITY OF BRASÍLIA/FEDERAL UNIVERSITY OF GOIÁS. |
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Título: |
Valorisation of salvia hispanica L. (Chia) oil into air-drying alkyd resins: towards solvent-free nanodispersion formulations and their oxidative miniemulsion polymerisation. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Journal of Polymers and the Environment, v. 32, p. 2698–2712, 2024. |
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DOI: |
https://doi.org/10.1007/s10924-024-03206-8 |
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Idioma: |
Inglês |
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Conteúdo: |
The current work was developed focusing on the synthesis of new polymeric latexes through the in reactor oxidative polymerisation of chia oil alkyd resins using the miniemulsion process. These latexes have potential applications, primarily in coating applications. Initially, an oil length mixture was obtained from chia oil through saponification and acidification reactions. The resulting mixture was characterized by 1H-NMR and 13C-NMR, confirming the presence of unsaturation and the characteristic functional groups associated with this compound. Phthalic anhydride and glycerol (esterification reaction) were used in the synthesis of alkyd resin. Alkyd resins were obtained by varying the oil length content in its composition: 30% wt% oil length alkyd resin is called short alkyd resin, 43% wt% oil length is medium resin and 64% wt% is the long alkyd resin. The 1H NMR spectra of alkyd resins showed peaks indicative of the presence of groups coming from phthalic anhydride and glycerol, as well as unsaturations that varied in intensity according to the size of the resin (short, medium or long). The miniemulsions were obtained from alkyd resins demonstrating colloidal stability over 90 days and with stable miniemulsions the oxidative polymerisation of the alkyd resins was carried out in a highpressure reactor with temperature and pressure control and in the presence of the radicalinitiator benzoyl peroxide (BPO) and oxygen. Based on 1H-NMR analysis, polymers are formed through the oxidative polymerisation of alkyd resins from chia oil using the miniemulsion process. These polymers can be used as a paint base with a low solvent fraction or no solvent, depending on the application, and without using heavy metals-based catalysts. MenosThe current work was developed focusing on the synthesis of new polymeric latexes through the in reactor oxidative polymerisation of chia oil alkyd resins using the miniemulsion process. These latexes have potential applications, primarily in coating applications. Initially, an oil length mixture was obtained from chia oil through saponification and acidification reactions. The resulting mixture was characterized by 1H-NMR and 13C-NMR, confirming the presence of unsaturation and the characteristic functional groups associated with this compound. Phthalic anhydride and glycerol (esterification reaction) were used in the synthesis of alkyd resin. Alkyd resins were obtained by varying the oil length content in its composition: 30% wt% oil length alkyd resin is called short alkyd resin, 43% wt% oil length is medium resin and 64% wt% is the long alkyd resin. The 1H NMR spectra of alkyd resins showed peaks indicative of the presence of groups coming from phthalic anhydride and glycerol, as well as unsaturations that varied in intensity according to the size of the resin (short, medium or long). The miniemulsions were obtained from alkyd resins demonstrating colloidal stability over 90 days and with stable miniemulsions the oxidative polymerisation of the alkyd resins was carried out in a highpressure reactor with temperature and pressure control and in the presence of the radicalinitiator benzoyl peroxide (BPO) and oxygen. Based on 1H-NMR analysis, polymers are formed through the ... Mostrar Tudo |
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Thesagro: |
Sálvia Hispânica. |
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Thesaurus Nal: |
Alkyd resins; Renewable resources; Solvents. |
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Categoria do assunto: |
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Marc: |
LEADER 02649naa a2200265 a 4500
001 2170968
005 2024-12-27
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10924-024-03206-8$2DOI
100 1 $aFLORINDO, T. M. G.
245 $aValorisation of salvia hispanica L. (Chia) oil into air-drying alkyd resins$btowards solvent-free nanodispersion formulations and their oxidative miniemulsion polymerisation.$h[electronic resource]
260 $c2024
520 $aThe current work was developed focusing on the synthesis of new polymeric latexes through the in reactor oxidative polymerisation of chia oil alkyd resins using the miniemulsion process. These latexes have potential applications, primarily in coating applications. Initially, an oil length mixture was obtained from chia oil through saponification and acidification reactions. The resulting mixture was characterized by 1H-NMR and 13C-NMR, confirming the presence of unsaturation and the characteristic functional groups associated with this compound. Phthalic anhydride and glycerol (esterification reaction) were used in the synthesis of alkyd resin. Alkyd resins were obtained by varying the oil length content in its composition: 30% wt% oil length alkyd resin is called short alkyd resin, 43% wt% oil length is medium resin and 64% wt% is the long alkyd resin. The 1H NMR spectra of alkyd resins showed peaks indicative of the presence of groups coming from phthalic anhydride and glycerol, as well as unsaturations that varied in intensity according to the size of the resin (short, medium or long). The miniemulsions were obtained from alkyd resins demonstrating colloidal stability over 90 days and with stable miniemulsions the oxidative polymerisation of the alkyd resins was carried out in a highpressure reactor with temperature and pressure control and in the presence of the radicalinitiator benzoyl peroxide (BPO) and oxygen. Based on 1H-NMR analysis, polymers are formed through the oxidative polymerisation of alkyd resins from chia oil using the miniemulsion process. These polymers can be used as a paint base with a low solvent fraction or no solvent, depending on the application, and without using heavy metals-based catalysts.
650 $aAlkyd resins
650 $aRenewable resources
650 $aSolvents
650 $aSálvia Hispânica
700 1 $aBRITO, G. F. S.
700 1 $aRESENDE, G.
700 1 $aBARROSO, R. G. M. R.
700 1 $aARARUNA, T.
700 1 $aARAUJO, R. T.
700 1 $aGONCALVES, S. B.
700 1 $aMACHADO, F.
773 $tJournal of Polymers and the Environment$gv. 32, p. 2698–2712, 2024.
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Embrapa Agroenergia (CNPAE) |
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| Registros recuperados : 243 | |
| 3. |  | PALHARES, J. C. P. Água e produção animal. Agrosoft. Disponível em: http://agrosoft.org.br/imprimir.php/?node=100302 3 p. Projeto n. 03.06.52.000-02. Acesso em: 20 mar. 2008. Disponível também em: http://www.suinoculturaindustrial.com.br/site/dinamica.asp?id=31... http://www.zoonews.com.br/noticiax.php?idnoticia=136044...| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 4. | | PALHARES, J. C. P. A água que falta e a água que exportamos. Suinocultura Industrial. Disponível em: http://www.suinoculturaindustrial.com.br/PortalGessulli/WebSite/News/Default.aspx?item=20090508115147_L_907. Projeto/Plano de Ação: 01.06.20.304-04. Acesso em: 5 maio 2009. Disponível também em: O Jornal, Concórdia, 13 maio 2009. p.2.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| Registros recuperados : 243 | |
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