Chemical functionalization of carbon nanotubes with aryl diazonium salts

2011 ◽  
Vol 1362 ◽  
Author(s):  
Anastasia A. Golosova ◽  
Christine M. Papadakis ◽  
Rainer Jordan
Keyword(s):  
Carbon Nanotubes ◽  
Room Temperature ◽  
Direct Method ◽  
Single Walled Carbon Nanotubes ◽  
Acetonitrile Solution ◽  
Diazonium Salts ◽  
Chemical Grafting ◽  
Simple Protocol ◽  
Functionalization Of Carbon Nanotubes ◽  
Walled Carbon Nanotubes

ABSTRACTWe describe a facile and direct method for the functionalization of single-walled carbon nanotubes with 4’-substituted phenyls and biphenyls. By means of Raman spectroscopy and thermogravimetric analysis we demonstrate that a simple protocol of a direct chemical grafting in acetonitrile solution of the corresponding diazonium salts at room temperature results in a formation of stable aryl monolayers on carbon nanotubes.

scholarly journals Synthesis of a Poly(3-dodecylthiophene) Bearing Aniline Groups for the Covalent Functionalization of Carbon Nanotubes

Reactions ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 473-485
Author(s):  
Felipe Wasem Klein ◽  
Jean-Philippe Lamps ◽  
Matthieu Paillet ◽  
Pierre Petit ◽  
Philippe J. Mésini
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Polymer Chains ◽  
Side Chain ◽  
Covalent Functionalization ◽  
One Step ◽  
Diazonium Coupling ◽  
Functionalization Of Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Grafting Onto

The functionalization of carbon nanotubes by polymers necessitates two steps, first their modification by oxidizing them or by covalently attaching small compounds to them, then the growth of the polymer chains from these anchors or their grafting onto them. In order to better control the process and the rate of functionalization, we develop polymers able to covalently react with the carbon nanotubes by their side chains in one step. We describe the synthesis of a copolymer of dodecylthiophene and its analogue bearing an aniline group at the end of the dodecyl side chain. This copolymer can functionalize single-walled carbon nanotubes (SWNTs) non-covalently and disperse more SWNTs than its hexyl analogues. UV-Vis and fluorescence spectroscopies show that in these non-covalent hybrids, the polymer forms p-stacked aggregates on the SWNTs. The non-covalent hybrids can be transformed into covalent ones by diazonium coupling. In these covalent hybrids the polymer is no longer p-stacked. According to Raman spectroscopy, the conformation of the poly(3-hexylthiophene) backbone is more ordered in the non-covalent hybrids than in the covalent ones.

scholarly journals Novel Catalysts, Room Temperature, and the Importance of Oxygen for the Synthesis of Single-Walled Carbon Nanotubes

Nano Letters ◽  
2005 ◽  
Vol 5 (7) ◽  
pp. 1209-1215 ◽  
Author(s):  
Mark H. Rümmeli ◽  
Ewa Borowiak-Palen ◽  
Thomas Gemming ◽  
Thomas Pichler ◽  
Martin Knupfer ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Room Temperature ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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