Generic Approach for Dispersing Single-Walled Carbon Nanotubes:  The Strength of a Weak Interaction

A generic noncovalent approach for dispersing high concentrations of individual single-walled carbon nanotubes (SWNT) in organic as well as aqueous solutions of synthetic block copolymers is presented. It is suggested that a weak, long-ranged entropic repulsion among polymer-decorated tubes acts as...

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Published inLangmuir Vol. 20; no. 15; pp. 6085 - 6088
Main Authors Shvartzman-Cohen, Rina, Levi-Kalisman, Yael, Nativ-Roth, Einat, Yerushalmi-Rozen, Rachel
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 20.07.2004
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Summary:A generic noncovalent approach for dispersing high concentrations of individual single-walled carbon nanotubes (SWNT) in organic as well as aqueous solutions of synthetic block copolymers is presented. It is suggested that a weak, long-ranged entropic repulsion among polymer-decorated tubes acts as a barrier that prevents the tubes from approaching the attractive part of the intertube potential. The method opens a new route for utilization of block copolymers as compatibilizers for SWNT, improving the incorporation of de-agglomerated SWNT into target polymeric matrixes.
Bibliography:ark:/67375/TPS-DJ1MSPBF-2
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content type line 23
ISSN:0743-7463
1520-5827
DOI:10.1021/la049344j