Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites

In this work we report the covalent functionalization of multiwalled carbon nanotubes (MWCNTs) with polyacrylonitrile (PAN) and polyvinylpyridine (PVP) by the graft from method. Differences in the electronic distribution of both polymers resulted in different interaction between polymers and the nan...

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Autores principales: Garate, H., De Falco, A., Moreno, M.S., Fascio, M.L., Goyanes, S., Daccorso, N.B.
Formato: JOUR
Materias:
Carbon nanotubes
Functionalization
Polyacrylonitrile
Polyvinylpyridine
Aromatic group
Carbon-nanotube composites
Covalent functionalizations
Electronic distribution
Functionalizations
Functionalized
Graft-from
Morphological changes
Nano scale
Polymer-grafted
Spatial conformation
UV-vis spectroscopy
Aromatic polymers
Fourier transform infrared spectroscopy
Grafting (chemical)
High resolution transmission electron microscopy
Multiwalled carbon nanotubes (MWCN)
Polyacrylonitriles
Thermogravimetric analysis
Ultraviolet visible spectroscopy
Polymers
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09214526_v407_n16_p3184_Garate
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09214526_v407_n16_p3184_Garate
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spelling todo:paper_09214526_v407_n16_p3184_Garate2023-10-03T15:45:28Z Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites Garate, H. De Falco, A. Moreno, M.S. Fascio, M.L. Goyanes, S. Daccorso, N.B. Carbon nanotubes Functionalization Polyacrylonitrile Polyvinylpyridine Aromatic group Carbon-nanotube composites Covalent functionalizations Electronic distribution Functionalizations Functionalized Graft-from Morphological changes Nano scale Polymer-grafted Polyvinylpyridine Spatial conformation UV-vis spectroscopy Aromatic polymers Carbon nanotubes Fourier transform infrared spectroscopy Grafting (chemical) High resolution transmission electron microscopy Multiwalled carbon nanotubes (MWCN) Polyacrylonitriles Thermogravimetric analysis Ultraviolet visible spectroscopy Polymers In this work we report the covalent functionalization of multiwalled carbon nanotubes (MWCNTs) with polyacrylonitrile (PAN) and polyvinylpyridine (PVP) by the graft from method. Differences in the electronic distribution of both polymers resulted in different interaction between polymers and the nanotubes. It was found that PVP chains wrapped the nanotubes while nanotubes functionalized with PAN presented PAN chains forming amorphous entanglements on the nanoscale linked to the MWCNTs. Differences in the conformation between both polymers and the MWCNTs can be attributed to interactions between the aromatic groups in PVP and the MWCNTs through π-π stacking. The absence of aromatic groups in the case of the PAN chains favours the interaction between them. The functionalization efficiency was characterized using Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and UV-vis spectroscopy, while morphological changes were characterized by high resolution transmission electron microscopy. © 2011 Elsevier B.V. All rights reserved. Fil:Fascio, M.L. 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_09214526_v407_n16_p3184_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 Carbon nanotubes
Functionalization
Polyacrylonitrile
Polyvinylpyridine
Aromatic group
Carbon-nanotube composites
Covalent functionalizations
Electronic distribution
Functionalizations
Functionalized
Graft-from
Morphological changes
Nano scale
Polymer-grafted
Polyvinylpyridine
Spatial conformation
UV-vis spectroscopy
Aromatic polymers
Carbon nanotubes
Fourier transform infrared spectroscopy
Grafting (chemical)
High resolution transmission electron microscopy
Multiwalled carbon nanotubes (MWCN)
Polyacrylonitriles
Thermogravimetric analysis
Ultraviolet visible spectroscopy
Polymers
spellingShingle Carbon nanotubes
Functionalization
Polyacrylonitrile
Polyvinylpyridine
Aromatic group
Carbon-nanotube composites
Covalent functionalizations
Electronic distribution
Functionalizations
Functionalized
Graft-from
Morphological changes
Nano scale
Polymer-grafted
Polyvinylpyridine
Spatial conformation
UV-vis spectroscopy
Aromatic polymers
Carbon nanotubes
Fourier transform infrared spectroscopy
Grafting (chemical)
High resolution transmission electron microscopy
Multiwalled carbon nanotubes (MWCN)
Polyacrylonitriles
Thermogravimetric analysis
Ultraviolet visible spectroscopy
Polymers
Garate, H.
De Falco, A.
Moreno, M.S.
Fascio, M.L.
Goyanes, S.
Daccorso, N.B.
Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites
topic_facet Carbon nanotubes
Functionalization
Polyacrylonitrile
Polyvinylpyridine
Aromatic group
Carbon-nanotube composites
Covalent functionalizations
Electronic distribution
Functionalizations
Functionalized
Graft-from
Morphological changes
Nano scale
Polymer-grafted
Polyvinylpyridine
Spatial conformation
UV-vis spectroscopy
Aromatic polymers
Carbon nanotubes
Fourier transform infrared spectroscopy
Grafting (chemical)
High resolution transmission electron microscopy
Multiwalled carbon nanotubes (MWCN)
Polyacrylonitriles
Thermogravimetric analysis
Ultraviolet visible spectroscopy
Polymers
description In this work we report the covalent functionalization of multiwalled carbon nanotubes (MWCNTs) with polyacrylonitrile (PAN) and polyvinylpyridine (PVP) by the graft from method. Differences in the electronic distribution of both polymers resulted in different interaction between polymers and the nanotubes. It was found that PVP chains wrapped the nanotubes while nanotubes functionalized with PAN presented PAN chains forming amorphous entanglements on the nanoscale linked to the MWCNTs. Differences in the conformation between both polymers and the MWCNTs can be attributed to interactions between the aromatic groups in PVP and the MWCNTs through π-π stacking. The absence of aromatic groups in the case of the PAN chains favours the interaction between them. The functionalization efficiency was characterized using Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and UV-vis spectroscopy, while morphological changes were characterized by high resolution transmission electron microscopy. © 2011 Elsevier B.V. All rights reserved.
format JOUR
author Garate, H.
De Falco, A.
Moreno, M.S.
Fascio, M.L.
Goyanes, S.
Daccorso, N.B.
author_facet Garate, H.
De Falco, A.
Moreno, M.S.
Fascio, M.L.
Goyanes, S.
Daccorso, N.B.
author_sort Garate, H.
title Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites
title_short Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites
title_full Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites
title_fullStr Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites
title_full_unstemmed Influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites
title_sort influence of the electronic distribution of polymers in the spatial conformation of polymer grafted carbon nanotube composites
url http://hdl.handle.net/20.500.12110/paper_09214526_v407_n16_p3184_Garate
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AT fascioml influenceoftheelectronicdistributionofpolymersinthespatialconformationofpolymergraftedcarbonnanotubecomposites
AT goyaness influenceoftheelectronicdistributionofpolymersinthespatialconformationofpolymergraftedcarbonnanotubecomposites
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