Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer

Chiyoung Park, Sanghwa Lee, Jung Ho Lee, Jino Lim, Sang Cheon Lee, Min Park, Sang-Soo Lee, Junkyong Kim, Chong Rae Park, Chulhee Kim

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

An amphiphilic diblock copolymer (PEtOz-PCL) based on hydrophilic poly(2-ethyl-2-oxazoline) (PEtOz) and hydrophobic poly(ε-caprolactone) (PCL) was adsorbed in aqueous phase on the surface of single-wall carbon nanotube to produce PEtOz-PCL-encapsulated SWCNTs (PEtOz-PCL/SWCNT) with the diameter about 30 nm. The Raman spectroscopy analysis indicated that the nanotubes were physically encapsulated by the block copolymer without chemical denaturation of the nanotube. PEtOz-PCL/SWCNTs exhibited pH-responsive reversible complexation with poly(acrylic acid) or poly(methacrylic acid) in aqueous phase due to the pH-dependent hydrogen bonding between the PEtOz outer shell of PEtOz-PCL/SWCNTs with carboxyl groups. In addition, by using PEtOz as a template for the formation of metal nanoparticles, Au and Pd nanoparticles were successfully hybridized with PEtOz-PCL/SWCNTs.

Original languageEnglish
Pages (from-to)2072-2078
Number of pages7
JournalCarbon
Volume45
Issue number10
DOIs
Publication statusPublished - 2007 Sep 1

Fingerprint

Carbon Nanotubes
Nanotubes
Block copolymers
Carbon nanotubes
Denaturation
Acids
Metal nanoparticles
Complexation
Acrylics
Raman spectroscopy
Hydrogen bonds
Nanoparticles
carbopol 940
poly(2-ethyl-2-oxazoline)
polycaprolactone

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Park, C., Lee, S., Lee, J. H., Lim, J., Lee, S. C., Park, M., ... Kim, C. (2007). Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer. Carbon, 45(10), 2072-2078. https://doi.org/10.1016/j.carbon.2007.05.017

Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer. / Park, Chiyoung; Lee, Sanghwa; Lee, Jung Ho; Lim, Jino; Lee, Sang Cheon; Park, Min; Lee, Sang-Soo; Kim, Junkyong; Park, Chong Rae; Kim, Chulhee.

In: Carbon, Vol. 45, No. 10, 01.09.2007, p. 2072-2078.

Research output: Contribution to journalArticle

Park, C, Lee, S, Lee, JH, Lim, J, Lee, SC, Park, M, Lee, S-S, Kim, J, Park, CR & Kim, C 2007, 'Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer', Carbon, vol. 45, no. 10, pp. 2072-2078. https://doi.org/10.1016/j.carbon.2007.05.017
Park, Chiyoung ; Lee, Sanghwa ; Lee, Jung Ho ; Lim, Jino ; Lee, Sang Cheon ; Park, Min ; Lee, Sang-Soo ; Kim, Junkyong ; Park, Chong Rae ; Kim, Chulhee. / Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer. In: Carbon. 2007 ; Vol. 45, No. 10. pp. 2072-2078.
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abstract = "An amphiphilic diblock copolymer (PEtOz-PCL) based on hydrophilic poly(2-ethyl-2-oxazoline) (PEtOz) and hydrophobic poly(ε-caprolactone) (PCL) was adsorbed in aqueous phase on the surface of single-wall carbon nanotube to produce PEtOz-PCL-encapsulated SWCNTs (PEtOz-PCL/SWCNT) with the diameter about 30 nm. The Raman spectroscopy analysis indicated that the nanotubes were physically encapsulated by the block copolymer without chemical denaturation of the nanotube. PEtOz-PCL/SWCNTs exhibited pH-responsive reversible complexation with poly(acrylic acid) or poly(methacrylic acid) in aqueous phase due to the pH-dependent hydrogen bonding between the PEtOz outer shell of PEtOz-PCL/SWCNTs with carboxyl groups. In addition, by using PEtOz as a template for the formation of metal nanoparticles, Au and Pd nanoparticles were successfully hybridized with PEtOz-PCL/SWCNTs.",
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AB - An amphiphilic diblock copolymer (PEtOz-PCL) based on hydrophilic poly(2-ethyl-2-oxazoline) (PEtOz) and hydrophobic poly(ε-caprolactone) (PCL) was adsorbed in aqueous phase on the surface of single-wall carbon nanotube to produce PEtOz-PCL-encapsulated SWCNTs (PEtOz-PCL/SWCNT) with the diameter about 30 nm. The Raman spectroscopy analysis indicated that the nanotubes were physically encapsulated by the block copolymer without chemical denaturation of the nanotube. PEtOz-PCL/SWCNTs exhibited pH-responsive reversible complexation with poly(acrylic acid) or poly(methacrylic acid) in aqueous phase due to the pH-dependent hydrogen bonding between the PEtOz outer shell of PEtOz-PCL/SWCNTs with carboxyl groups. In addition, by using PEtOz as a template for the formation of metal nanoparticles, Au and Pd nanoparticles were successfully hybridized with PEtOz-PCL/SWCNTs.

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