Potentiometric, Electronic, and Transient Absorptive Spectroscopic Properties of Oxidized Single-Walled Carbon Nanotubes Helically Wrapped by Ionic, Semiconducting Polymers in Aqueous and Organic Media

2014 ◽  
Vol 136 (40) ◽  
pp. 14193-14199 ◽  
Author(s):  
Pravas Deria ◽  
Jean-Hubert Olivier ◽  
Jaehong Park ◽  
Michael J. Therien
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Spectroscopic Properties ◽  
Semiconducting Polymers ◽  
Organic Media ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

A Stable Thin Film from Soluble Single-Walled Carbon Nanotubes on ITO

2011 ◽  
Vol 287-290 ◽  
pp. 2443-2446
Author(s):  
Su Min Wang ◽  
Qi Guan Wang ◽  
Jian Ping Li ◽  
Hiroshi Moriyama ◽  
Wei Xing Chen
Keyword(s):  
Carbon Nanotubes ◽  
Redox Reactions ◽  
Conductive Polymer ◽  
Stable State ◽  
Single Walled Carbon Nanotubes ◽  
Organic Media ◽  
Covalent Bonds ◽  
Single Walled Carbon ◽  
Reversible Redox ◽  
Walled Carbon Nanotubes

Thin films of single-walled carbon nanotubes (SWNTs) attached to an ITO surface (SAM–ITO) self-assembled in advance from 3-aminopropyltrimethoxysilane through amide covalent bonds were prepared. The SWNTs were safely obtained via a two-step process assisted by microwave radiation, which were soluble in aqueous and organic media. However, the CV behavior of SAM–ITO in acidic aqueous systems showed unexpected oxidation signals due to redox reactions involving the defects and sidewalls of soluble functionalized SWNTs. It was found that, after a conductive polymer of polyaniline was chemically incorporated onto the surface of the SWNTs by using electropolymerization method, the CV data showed a single reversible redox couple, which indicated a more stable state.

scholarly journals Polyvinylchloride-Single-Walled Carbon Nanotube Composites: Thermal and Spectroscopic Properties

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Mircea Chipara ◽  
Jessica Cruz ◽  
Edgar R. Vega ◽  
Jorge Alarcon ◽  
Thomas Mion ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Spectroscopic Properties ◽  
Scattering Data ◽  
Degree Of Crystallinity ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
X Ray Scattering ◽  
Nanotube Composites ◽  
Walled Carbon Nanotubes

Nanocomposites of single-walled carbon nanotubes dispersed within polyvinylchloride have been obtained by using the solution path. High-power sonication was utilized to achieve a good dispersion of carbon nanotubes. Thermogravimetric analysis revealed that during the synthesis, processing, or thermal analysis of these nanocomposites the released chlorine is functionalizing the single-walled carbon nanotubes. The loading of polyvinylchloride by single-walled carbon nanotubes increases the glass transition temperature of the polymeric matrix, demonstrating the interactions between macromolecular chains and filler. Wide Angle X-Ray Scattering data suggested a drop of the crystallite size and of the degree of crystallinity as the concentration of single-walled carbon nanotubes is increased. The in situ chlorination and amorphization of nanotube during the synthesis (sonication step) is confirmed by Raman spectroscopy.

Single-Handed Helical Wrapping of Single-Walled Carbon Nanotubes by Chiral, Ionic, Semiconducting Polymers

2013 ◽  
Vol 135 (43) ◽  
pp. 16220-16234 ◽  
Author(s):  
Pravas Deria ◽  
Christopher D. Von Bargen ◽  
Jean-Hubert Olivier ◽  
Amar S. Kumbhar ◽  
Jeffery G. Saven ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Semiconducting Polymers ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Spectroscopic characterization of the electrochemical functionalization of single-walled carbon nanotubes in aqueous and organic media

Carbon ◽  
2012 ◽  
Vol 50 (3) ◽  
pp. 922-931 ◽  
Author(s):  
Natal’ya S. Komarova ◽  
Alexander G. Krivenko ◽  
Alexander G. Ryabenko ◽  
Alexander V. Naumkin ◽  
Elena V. Stenina ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Spectroscopic Characterization ◽  
Organic Media ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Dispersion Behavior and Spectroscopic Properties of Single-walled Carbon Nanotubes in Chitosan Acidic Aqueous Solutions

2005 ◽  
Vol 34 (11) ◽  
pp. 1516-1517 ◽  
Author(s):  
Teruo Takahashi ◽  
Catalin Romeo Luculescu ◽  
Katsumi Uchida ◽  
Tadahiro Ishii ◽  
Hirofumi Yajima
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solutions ◽  
Single Walled Carbon Nanotubes ◽  
Spectroscopic Properties ◽  
Single Walled Carbon ◽  
Dispersion Behavior ◽  
Walled Carbon Nanotubes
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