Artículo
Ledo-Suárez, A.; Puig, J.; Zucchi, I.A.; Hoppe, C.E.; Gómez, M.L.; Zysler, R.; Ramos, C.; Marchi, M.C.; Bilmes, S.A.; Lazzari, M.; López-Quintela, M.A.; Williams, R.J.J. "Functional nanocomposites based on the infusion or in situ generation of nanoparticles into amphiphilic epoxy gels" (2010) Journal of Materials Chemistry. 20(45):10135-10145
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Abstract:
The production of nanocomposites with functional properties via the infusion of preformed nanoparticles (NPs) or their in situ generation inside an amphiphilic epoxy gel is reported. The gel was synthesized by the reaction of a diepoxy monomer based on diglycidyl ether of bisphenol A with an n-alkylamine, followed by annealing the resulting linear polymers above their glass transition temperatures to produce physical gelation through tail-to-tail association of pendant alkyl chains. Some of the advantages of these polymer gels are: (a) they have a low crosslink density and can therefore be significantly swollen by several organic solvents, (b) the presence of pendant alkyl chains provides a convenient chemical environment for the stabilization of NPs coated with alkyl chains, (c) the presence of secondary hydroxyls and tertiary amine groups in the polar backbone of polymer chains can be used to coordinate and reduce different precursors of NPs. Preformed NPs could be successfully infused into the gels keeping their optical properties (e.g., CdSe quantum dots) or magnetic behavior (e.g., γ-Fe 2 O 3 @oleic acid NPs) in the resulting nanocomposite. In situ generation of Au and Ag NPs (average size close to 10 nm) inside the amphiphilic gels was produced by infusing HAuCl 4 or AgNO 3 followed by reduction to the corresponding metals with secondary alcohols present in the polymer backbone, at 100 °C. Amphiphilic gels were employed as hosts for the in situ precipitation of gold(i)-dodecanethiolate leading to films exhibiting a red emission (638 nm) when excited with UV light (300 nm). © 2010 The Royal Society of Chemistry.
Registro:
| Documento: | Artículo |
| Título: | Functional nanocomposites based on the infusion or in situ generation of nanoparticles into amphiphilic epoxy gels |
| Autor: | Ledo-Suárez, A.; Puig, J.; Zucchi, I.A.; Hoppe, C.E.; Gómez, M.L.; Zysler, R.; Ramos, C.; Marchi, M.C.; Bilmes, S.A.; Lazzari, M.; López-Quintela, M.A.; Williams, R.J.J. |
| Filiación: | Institute of Materials Science and Technology (INTEMA), University of Mar Del Plata, National Research Council (CONICET), J. B. Justo 4302 7600, Mar del Plata, Argentina Departamento de Química Física, Facultad de Química, Campus Universitario sur, Santiago de Compostela 15782, Spain Centro Atómico Bariloche (CAB), Instituto Balseiro, Av. Bustillo 9500, San Carlos de Bariloche (RN) 8400, Argentina Instituto de Química Física de Los Materiales Medio Ambiente y Energía, Ciudad Universitaria, Pabellón II, C1428EHA Buenos Aires, Argentina |
| Palabras clave: | Alkyl chain; Amphiphilic gel; Amphiphilics; Average size; CdSe quantum dots; Chemical environment; Cross-link densities; Diepoxy monomers; Different precursors; Diglycidyl ether of bisphenol-A; Functional nanocomposites; Functional properties; Glass transition temperature; In-situ; In-situ precipitation; Linear polymers; Magnetic behavior; N-alkylamine; Physical gelation; Polymer backbones; Polymer chains; Polymer gels; Red emissions; Secondary alcohols; Tertiary amine groups; UV light; Alkylation; Association reactions; Cadmium compounds; Coagulation; Crosslinking; Ethers; Gelation; Gels; Gold compounds; Nanocomposites; Nanoparticles; Oleic acid; Optical properties; Organic solvents; Phenols; Polymers; Glass transition |
| Año: | 2010 |
| Volumen: | 20 |
| Número: | 45 |
| Página de inicio: | 10135 |
| Página de fin: | 10145 |
| DOI: | http://dx.doi.org/10.1039/c0jm01421d |
| Título revista: | Journal of Materials Chemistry |
| Título revista abreviado: | J. Mater. Chem. |
| ISSN: | 09599428 |
| CODEN: | JMACE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09599428_v20_n45_p10135_LedoSuarez |
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Citas:
---------- APA ----------
Ledo-Suárez, A., Puig, J., Zucchi, I.A., Hoppe, C.E., Gómez, M.L., Zysler, R., Ramos, C.,..., Williams, R.J.J. (2010) . Functional nanocomposites based on the infusion or in situ generation of nanoparticles into amphiphilic epoxy gels. Journal of Materials Chemistry, 20(45), 10135-10145.http://dx.doi.org/10.1039/c0jm01421d
---------- CHICAGO ----------
Ledo-Suárez, A., Puig, J., Zucchi, I.A., Hoppe, C.E., Gómez, M.L., Zysler, R., et al. "Functional nanocomposites based on the infusion or in situ generation of nanoparticles into amphiphilic epoxy gels" . Journal of Materials Chemistry 20, no. 45 (2010) : 10135-10145.http://dx.doi.org/10.1039/c0jm01421d
---------- MLA ----------
Ledo-Suárez, A., Puig, J., Zucchi, I.A., Hoppe, C.E., Gómez, M.L., Zysler, R., et al. "Functional nanocomposites based on the infusion or in situ generation of nanoparticles into amphiphilic epoxy gels" . Journal of Materials Chemistry, vol. 20, no. 45, 2010, pp. 10135-10145.http://dx.doi.org/10.1039/c0jm01421d
---------- VANCOUVER ----------
Ledo-Suárez, A., Puig, J., Zucchi, I.A., Hoppe, C.E., Gómez, M.L., Zysler, R., et al. Functional nanocomposites based on the infusion or in situ generation of nanoparticles into amphiphilic epoxy gels. J. Mater. Chem. 2010;20(45):10135-10145.http://dx.doi.org/10.1039/c0jm01421d
