Doe, C.
, Jang, H.
, Kim, T.
, Kline, S.
and Choi, S.
(2009),
Thermally Switchable One- and Two-Dimensional Arrays of Single-Walled Carbon Nanotubes in a Polymeric System, Journal of the American Chemical Society, [online], https://doi.org/10.1021/ja9073479, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902760
(Accessed December 3, 2024)
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Thermally Switchable One- and Two-Dimensional Arrays of Single-Walled Carbon Nanotubes in a Polymeric System
Published
Author(s)
Changwoo Doe, Hyung-Sik Jang, Tae-Hwan Kim, , Sung-Min Choi
Abstract
Fabrication of highly ordered arrays of single walled carbon nanotubes (SWNTs) has been of great interest for a wide range of potential applications. Here we report highly ordered arrays of individually isolated SWNTs formed by cooperative self-assembly of functionalized SWNTs and a block copolymer/water system. Small angle X-ray scattering measurements reveal that when the block copolymer/water system is in an isotropic phase, hexagonal arrays of SWNTs are formed by depletion attraction and when the block copolymer/water system is in a lamellar phase, one-dimensional lattices of SWNTs intercalated in the polar regions of the polymeric lamellar structure are formed by entropically driven segregation and two-dimensional depletion attraction. These two SWNT arrays are thermally interchangeable equilibrium structures following the temperature dependent phase behavior of the block copolymer/water system.Citation
Journal of the American Chemical Society
Volume
131
Pub Type
Journals
Download Paper
Keywords
carbon nanotubes, self-assembly, block copolymer, SAXS, templated structures, nanotube alignment
Citation
Issues
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Created October 26, 2009, Updated July 26, 2023