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Dispersion of Pristine Carbon Nanotubes Using Conjugated Block Copolymers
Author(s) -
Zou Jianhua,
Liu Liwei,
Chen Hui,
Khondaker Saiful I.,
McCullough Richard D.,
Huo Qun,
Zhai Lei
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701995
Subject(s) - copolymer , carbon nanotube , materials science , polystyrene , dispersion (optics) , conjugated system , block (permutation group theory) , solubility , carbon fibers , nanotechnology , chemical engineering , polymer chemistry , polymer , polymer science , composite material , organic chemistry , chemistry , optics , physics , geometry , mathematics , engineering , composite number
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.