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Abstract:

The synergistic effect of using polystyrene-grafted multi-walled carbon nanotubes (PSgMWCNT) and a surfactant in the dispersion of MWCNT in a self-assembled poly(styrene-b-isoprene-b-styrene) (SIS) block copolymer is reported. The functionalization of MWCNT with polystyrene achieved by the grafting-from approach is not enough to disperse them in the SIS block copolymer. However, a high dispersion of PSgMWCNT in SIS is achieved when dodecanethiol (DT) was added through composite preparation, without affecting the SIS capacity to self-assemble in ordered cylinders. Suspensions of PSgMWCNT without DT and not functionalized MWCNT with DT presented low stability forming aggregates in less than 10 min. On the contrary, the stability of PSgMWCNT suspension in the presence of DT was dramatically enhanced to more than two weeks. This synergistic effect is due to interactions between PSgMWCNT and DT molecules, as proved by UV-Vis spectroscopy. © 2011 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer
Autor:Garate, H.; Fascio, M.L.; Mondragon, I.; D'Accorso, N.B.; Goyanes, S.
Filiación:CIHIDECAR-CONICET, Departamento de Química Orgánica, FCEyN - UBA, Ciudad Universitaria 1428, Ciudad Autónoma de Buenos Aires, Argentina
IFIBA - CONICET, LPandMC, Departamento de Física, FCEyN - UBA, Ciudad Universitaria 1428, Ciudad Autónoma de Buenos Aires, Argentina
Departamento de Ingeniería Química y Medio Ambiente, Escuela Politécnica, University of the Basque Country, Pza. Europa 1, 20018 Donostia-San Sebastián, Spain
Palabras clave:Block copolymer; Multi-walled carbon nanotubes; Polystyrene; Block copolymers; Dispersions; Grafting (chemical); Isoprene; Polystyrenes; Styrene; Surface active agents; Ultraviolet visible spectroscopy; Yarn; Functionalizations; Functionalized carbon nanotubes; Functionalized-MWCNT; High dispersion; Nano-structured; Surfactant aided dispersion; Synergistic effect; UV-vis spectroscopy; Multiwalled carbon nanotubes (MWCN)
Año:2011
Volumen:52
Número:10
Página de inicio:2214
Página de fin:2220
DOI: http://dx.doi.org/10.1016/j.polymer.2011.03.032
Título revista:Polymer
Título revista abreviado:Polymer
ISSN:00323861
CODEN:POLMA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00323861_v52_n10_p2214_Garate

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Citas:

---------- APA ----------
Garate, H., Fascio, M.L., Mondragon, I., D'Accorso, N.B. & Goyanes, S. (2011) . Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer. Polymer, 52(10), 2214-2220.
http://dx.doi.org/10.1016/j.polymer.2011.03.032
---------- CHICAGO ----------
Garate, H., Fascio, M.L., Mondragon, I., D'Accorso, N.B., Goyanes, S. "Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer" . Polymer 52, no. 10 (2011) : 2214-2220.
http://dx.doi.org/10.1016/j.polymer.2011.03.032
---------- MLA ----------
Garate, H., Fascio, M.L., Mondragon, I., D'Accorso, N.B., Goyanes, S. "Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer" . Polymer, vol. 52, no. 10, 2011, pp. 2214-2220.
http://dx.doi.org/10.1016/j.polymer.2011.03.032
---------- VANCOUVER ----------
Garate, H., Fascio, M.L., Mondragon, I., D'Accorso, N.B., Goyanes, S. Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer. Polymer. 2011;52(10):2214-2220.
http://dx.doi.org/10.1016/j.polymer.2011.03.032