A tailored RAFT copolymer for the dispersion of single walled carbon nanotubes in aqueous media

2014 ◽  
Vol 5 (21) ◽  
pp. 6148-6150 ◽  
Author(s):  
Eleonora Pavoni ◽  
Elisa Bandini ◽  
Massimo Benaglia ◽  
Jennifer K. Molloy ◽  
Giacomo Bergamini ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Block Copolymers ◽  
Aqueous Media ◽  
Single Walled Carbon Nanotubes ◽  
Rational Approach ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

A new rational approach to the dispersion of SWCNT in aqueous media with amphiphilic RAFT block copolymers is proposed.

The Evaluation of Individual Dispersion of Single-Walled Carbon Nanotubes Using Absorption and Fluorescence Spectroscopic Techniques

2007 ◽  
Vol 7 (11) ◽  
pp. 3727-3730
Author(s):  
Dokyung Yoon ◽  
Sun-Jung Kang ◽  
Jae-Boong Choi ◽  
Young-Jin Kim ◽  
Seunghyun Baik
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Media ◽  
Sodium Dodecyl ◽  
Single Walled Carbon Nanotubes ◽  
Spectroscopic Techniques ◽  
Single Walled Carbon ◽  
Dispersion State ◽  
Semiconducting Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Nanotube Chirality

We have investigated the degree of dispersion of single-walled carbon nanotubes (SWNTs) in solution using laser spectroscopic techniques. SWNTs were suspended in aqueous media using a sodium dodecyl sulfate (SDS) surfactant. SWNTs with different dispersion states were prepared by controlling the intensity and duration of sonication and centrifugation. The absorption and fluorescence spectroscopic techniques were employed to characterize the different dispersion state of the prepared samples. Nanotube suspensions with better dispersion showed higher fluorescence and sharper absorption peaks. The fluorescence data were characterized as a function of the nanotube chirality, and absorption peak shifts were analyzed depending on the first and second van Hove singularities (vHs) of semiconducting nanotubes.

The Evaluation of Individual Dispersion of Single-Walled Carbon Nanotubes Using Absorption and Fluorescence Spectroscopic Techniques

2007 ◽  
Vol 7 (11) ◽  
pp. 3727-3730 ◽  
Author(s):  
Dokyung Yoon ◽  
Sun-Jung Kang ◽  
Jae-Boong Choi ◽  
Young-Jin Kim ◽  
Seunghyun Baik
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Media ◽  
Sodium Dodecyl ◽  
Single Walled Carbon Nanotubes ◽  
Spectroscopic Techniques ◽  
Single Walled Carbon ◽  
Dispersion State ◽  
Semiconducting Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Nanotube Chirality

We have investigated the degree of dispersion of single-walled carbon nanotubes (SWNTs) in solution using laser spectroscopic techniques. SWNTs were suspended in aqueous media using a sodium dodecyl sulfate (SDS) surfactant. SWNTs with different dispersion states were prepared by controlling the intensity and duration of sonication and centrifugation. The absorption and fluorescence spectroscopic techniques were employed to characterize the different dispersion state of the prepared samples. Nanotube suspensions with better dispersion showed higher fluorescence and sharper absorption peaks. The fluorescence data were characterized as a function of the nanotube chirality, and absorption peak shifts were analyzed depending on the first and second van Hove singularities (vHs) of semiconducting nanotubes.

Probing and Tailoring pH-Dependent Interactions between Block Copolymers and Single-Walled Carbon Nanotubes for Density Gradient Sorting

2012 ◽  
Vol 116 (37) ◽  
pp. 20103-20108 ◽  
Author(s):  
Alexander L. Antaris ◽  
Jung-Woo T. Seo ◽  
Ryan E. Brock ◽  
Jane E. Herriman ◽  
Michael J. Born ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Block Copolymers ◽  
Density Gradient ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Ph Dependent ◽  
Walled Carbon Nanotubes

Sorting Single-Walled Carbon Nanotubes by Electronic Type Using Nonionic, Biocompatible Block Copolymers

ACS Nano ◽  
2010 ◽  
Vol 4 (8) ◽  
pp. 4725-4732 ◽  
Author(s):  
Alexander L. Antaris ◽  
Jung-Woo T. Seo ◽  
Alexander A. Green ◽  
Mark C. Hersam
Keyword(s):  
Carbon Nanotubes ◽  
Block Copolymers ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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