Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer

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-...

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Autores principales: Garate, H., Fascio, M.L., Mondragon, I., D'Accorso, N.B., Goyanes, S.
Formato: JOUR
Materias:
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)
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00323861_v52_n10_p2214_Garate
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00323861_v52_n10_p2214_Garate
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spelling todo:paper_00323861_v52_n10_p2214_Garate2023-10-03T14:45:14Z Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer Garate, H. Fascio, M.L. Mondragon, I. D'Accorso, N.B. Goyanes, S. 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) 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. Fil:Fascio, M.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:D'Accorso, N.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goyanes, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00323861_v52_n10_p2214_Garate
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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)
spellingShingle 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)
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
topic_facet 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)
description 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.
format JOUR
author Garate, H.
Fascio, M.L.
Mondragon, I.
D'Accorso, N.B.
Goyanes, S.
author_facet Garate, H.
Fascio, M.L.
Mondragon, I.
D'Accorso, N.B.
Goyanes, S.
author_sort Garate, H.
title Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer
title_short Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer
title_full Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer
title_fullStr Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer
title_full_unstemmed Surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer
title_sort surfactant-aided dispersion of polystyrene-functionalized carbon nanotubes in a nanostructured poly(styrene-b-isoprene-b-styrene) block copolymer
url http://hdl.handle.net/20.500.12110/paper_00323861_v52_n10_p2214_Garate
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