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 |
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Pages (from-to) | 2072-2078 |
Number of pages | 7 |
Journal | Carbon |
Volume | 45 |
Issue number | 10 |
DOIs | |
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