Surface modification of multiwalled carbon nanotubes via nitroxide-mediated radical polymerization

Xiao Dong Zhao; Xinc H.E. Fan; Xiao Fanc Chen; Chun Peng Chai; Q. I.Feng Zhou

doi:10.1002/pola.21570

Surface modification of multiwalled carbon nanotubes via nitroxide-mediated radical polymerization

Xiao Dong Zhao, Xinc H.E. Fan^*, Xiao Fanc Chen, Chun Peng Chai, Q. I.Feng Zhou

^*Corresponding author for this work

Peking University

Research output: Contribution to journal › Article › peer-review

88 Citations (Scopus)

Abstract

The nitroxide-mediated radical polymerization of styrene was carried out on the surfaces of multiwalled carbon nanotubes (MWNTs) initiated by an MWNT-supported initiator multiwalled carbon nanotube-2′′, 2′′,6′′,6′′-tetramethylpiperidinyloxy (MWNT-Tempo). The content of polystyrene grafted from the surface was controlled by changes in the polymerization conditions, such as the reaction times or the ratios of monomers to initiators. The obtained polystyrene-grafted multiwalled carbon nanotubes (MWNT-PSs) were further used to initiate the polymerization of 4-vinyl-pyridine to get polystyrene-b-poly(4-vinylpyridine)-grafted multiwalled carbon nano-tubes (MWNT-PS-b-P4VPs). In contrast to unmodified MWNTs, MWNT-PSs had relatively good dispersibility in various organic solvents, such as tetrahydrofuran, CHCL₃, and o-dichlorobenzene. The structures and properties of MWNT-PSs and MWNT-PS-b-P4VPs were characterized and studied with several methods, including thermogravimetric analysis, Fourier transform infrared, ultraviolet-visible, and transmission electron microscopy.

Original language	English
Pages (from-to)	4656-4667
Number of pages	12
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	44
Issue number	15
DOIs	https://doi.org/10.1002/pola.21570
Publication status	Published - 1 Aug 2006
Externally published	Yes

Keywords

Atom transfer radical polymerization (ATRP)
Graft copolymers
Living polymerization
Multiwalled carbon nanotubes (MWNTs)
Nitroxide-mediated radical polymerization (NMRP)
Polystyrene; polystyrene-b-poly(4-vinylpyridine)

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title = "Surface modification of multiwalled carbon nanotubes via nitroxide-mediated radical polymerization",

abstract = "The nitroxide-mediated radical polymerization of styrene was carried out on the surfaces of multiwalled carbon nanotubes (MWNTs) initiated by an MWNT-supported initiator multiwalled carbon nanotube-2′′, 2′′,6′′,6′′-tetramethylpiperidinyloxy (MWNT-Tempo). The content of polystyrene grafted from the surface was controlled by changes in the polymerization conditions, such as the reaction times or the ratios of monomers to initiators. The obtained polystyrene-grafted multiwalled carbon nanotubes (MWNT-PSs) were further used to initiate the polymerization of 4-vinyl-pyridine to get polystyrene-b-poly(4-vinylpyridine)-grafted multiwalled carbon nano-tubes (MWNT-PS-b-P4VPs). In contrast to unmodified MWNTs, MWNT-PSs had relatively good dispersibility in various organic solvents, such as tetrahydrofuran, CHCL3, and o-dichlorobenzene. The structures and properties of MWNT-PSs and MWNT-PS-b-P4VPs were characterized and studied with several methods, including thermogravimetric analysis, Fourier transform infrared, ultraviolet-visible, and transmission electron microscopy.",

keywords = "Atom transfer radical polymerization (ATRP), Graft copolymers, Living polymerization, Multiwalled carbon nanotubes (MWNTs), Nitroxide-mediated radical polymerization (NMRP), Polystyrene; polystyrene-b-poly(4-vinylpyridine)",

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AU - Zhao, Xiao Dong

AU - Fan, Xinc H.E.

AU - Chen, Xiao Fanc

AU - Chai, Chun Peng

AU - Zhou, Q. I.Feng

PY - 2006/8/1

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N2 - The nitroxide-mediated radical polymerization of styrene was carried out on the surfaces of multiwalled carbon nanotubes (MWNTs) initiated by an MWNT-supported initiator multiwalled carbon nanotube-2′′, 2′′,6′′,6′′-tetramethylpiperidinyloxy (MWNT-Tempo). The content of polystyrene grafted from the surface was controlled by changes in the polymerization conditions, such as the reaction times or the ratios of monomers to initiators. The obtained polystyrene-grafted multiwalled carbon nanotubes (MWNT-PSs) were further used to initiate the polymerization of 4-vinyl-pyridine to get polystyrene-b-poly(4-vinylpyridine)-grafted multiwalled carbon nano-tubes (MWNT-PS-b-P4VPs). In contrast to unmodified MWNTs, MWNT-PSs had relatively good dispersibility in various organic solvents, such as tetrahydrofuran, CHCL3, and o-dichlorobenzene. The structures and properties of MWNT-PSs and MWNT-PS-b-P4VPs were characterized and studied with several methods, including thermogravimetric analysis, Fourier transform infrared, ultraviolet-visible, and transmission electron microscopy.

AB - The nitroxide-mediated radical polymerization of styrene was carried out on the surfaces of multiwalled carbon nanotubes (MWNTs) initiated by an MWNT-supported initiator multiwalled carbon nanotube-2′′, 2′′,6′′,6′′-tetramethylpiperidinyloxy (MWNT-Tempo). The content of polystyrene grafted from the surface was controlled by changes in the polymerization conditions, such as the reaction times or the ratios of monomers to initiators. The obtained polystyrene-grafted multiwalled carbon nanotubes (MWNT-PSs) were further used to initiate the polymerization of 4-vinyl-pyridine to get polystyrene-b-poly(4-vinylpyridine)-grafted multiwalled carbon nano-tubes (MWNT-PS-b-P4VPs). In contrast to unmodified MWNTs, MWNT-PSs had relatively good dispersibility in various organic solvents, such as tetrahydrofuran, CHCL3, and o-dichlorobenzene. The structures and properties of MWNT-PSs and MWNT-PS-b-P4VPs were characterized and studied with several methods, including thermogravimetric analysis, Fourier transform infrared, ultraviolet-visible, and transmission electron microscopy.

KW - Atom transfer radical polymerization (ATRP)

KW - Graft copolymers

KW - Living polymerization

KW - Multiwalled carbon nanotubes (MWNTs)

KW - Nitroxide-mediated radical polymerization (NMRP)

KW - Polystyrene; polystyrene-b-poly(4-vinylpyridine)

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JF - Journal of Polymer Science, Part A: Polymer Chemistry

IS - 15

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Surface modification of multiwalled carbon nanotubes via nitroxide-mediated radical polymerization

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Keywords

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