Volume 26, Issue 18 pp. 1451-1457

Communication

Amphiphilic Block Copolymer Micelles: New Dispersant for Single Wall Carbon Nanotubes^†

Hye-in Shin,

Hye-in Shin

Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea

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Byung Gil Min,

Byung Gil Min

School of Advanced Materials and System Engineering, Kumho Institute of Technology, Kumi 730-701, Korea

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Wonyong Jeong,

Wonyong Jeong

Materials Science and Technology Division, Korea Institute of Science and Technology, P. O. Box 131, Cheongryang, Seoul 130-650, Korea

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Cheolmin Park,

Corresponding Author

Cheolmin Park

[email protected]

Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea

Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea. Fax: (+82) 2 312 5375Search for more papers by this author

Hye-in Shin,

Hye-in Shin

Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea

Search for more papers by this author

Byung Gil Min,

Byung Gil Min

School of Advanced Materials and System Engineering, Kumho Institute of Technology, Kumi 730-701, Korea

Search for more papers by this author

Wonyong Jeong,

Wonyong Jeong

Materials Science and Technology Division, Korea Institute of Science and Technology, P. O. Box 131, Cheongryang, Seoul 130-650, Korea

Search for more papers by this author

Cheolmin Park,

Corresponding Author

Cheolmin Park

[email protected]

Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea

Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea. Fax: (+82) 2 312 5375Search for more papers by this author

First published: 05 September 2005

https://doi.org/10.1002/marc.200500290

Citations: 86

^†

Supporting information for this article is available at the bottom of the article's abstract page, which can be accessed from the journal's homepage at http://www.mrc-journal.de, or from the author.

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Abstract

Summary: This manuscript describes a new simple method to disperse single wall carbon nanotubes (SWNTs) in various organic solvents. The method is based on using amphiphilic block copolymer micelles as a dispersant. We have found that the stabilization of SWNTs by block copolymer micelles adhering to the surface of nanotubes is much superior to that by either surfactants or high-molecular-weight polymers currently used. Our nondestructive method is beneficial because the amphiphilic property of the block copolymer micelles enables us to stabilize SWNTs in either polar solvents or nonpolar ones at the same time. We also demonstrate that silver nanoparticles are selectively synthesized in polar cores of micelles adsorbed on the surface of SWNTs and the subsequent heat treatment modifies the surface of SWNTs.

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Volume26, Issue18

September 23, 2005

Pages 1451-1457

Amphiphilic Block Copolymer Micelles: New Dispersant for Single Wall Carbon Nanotubes^†

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Amphiphilic Block Copolymer Micelles: New Dispersant for Single Wall Carbon Nanotubes†

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Amphiphilic Block Copolymer Micelles: New Dispersant for Single Wall Carbon Nanotubes^†