Dispersion of Pristine Carbon Nanotubes Using Conjugated Block Copolymers

Abstract

A complete dispersion of both single-wall and multiwall carbon nanotubes (CNTs) to individual tube level was achieved using a conjugated block copolymer without chemical modification of the pristine CNTs. The block copolymer contains two structural segments, a conjugated poly(3-hexylthiophene) (P3HT) segment and a polystyrene (PS) segment. P3HT block forms π–π interactions with CNTs, while the polystyrene block provides a good solubility to the de-bundled carbon nanotubes. This approach is generic for carbon nanotube dispersion. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2008/adma200701995_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.