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

doi:10.1016/j.carbon.2007.05.017

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 journal › Article › peer-review

26 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 language	English
Pages (from-to)	2072-2078
Number of pages	7
Journal	Carbon
Volume	45
Issue number	10
DOIs	https://doi.org/10.1016/j.carbon.2007.05.017
Publication status	Published - 2007 Sept

Bibliographical note

Funding Information:
This work was supported by Korea Research Foundation (2005-041-D00238). C.K. also thanks Core Technology Program of MOCIE, Korea.

ASJC Scopus subject areas

General Chemistry
General Materials Science

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10.1016/j.carbon.2007.05.017

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title = "Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer",

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.",

author = "Chiyoung Park and Sanghwa Lee and Lee, {Jung Ho} and Jino Lim and Lee, {Sang Cheon} and Min Park and Lee, {Sang Soo} and Junkyong Kim and Park, {Chong Rae} and Chulhee Kim",

note = "Funding Information: This work was supported by Korea Research Foundation (2005-041-D00238). C.K. also thanks Core Technology Program of MOCIE, Korea.",

year = "2007",

month = sep,

doi = "10.1016/j.carbon.2007.05.017",

language = "English",

volume = "45",

pages = "2072--2078",

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T1 - Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer

AU - Park, Chiyoung

AU - Lee, Sanghwa

AU - Lee, Jung Ho

AU - Lim, Jino

AU - Lee, Sang Cheon

AU - Park, Min

AU - Lee, Sang Soo

AU - Kim, Junkyong

AU - Park, Chong Rae

AU - Kim, Chulhee

N1 - Funding Information: This work was supported by Korea Research Foundation (2005-041-D00238). C.K. also thanks Core Technology Program of MOCIE, Korea.

PY - 2007/9

Y1 - 2007/9

N2 - 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.

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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Controlled assembly of carbon nanotubes encapsulated with amphiphilic block copolymer

Abstract

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