Synthesis and Electrophoretic Deposition of Single-Walled Carbon Nanotube Complexes with a Conjugated Polyelectrolyte

Autor: Travis Casagrande, Igor Zhitomirsky, Gianluigi A. Botton, Patigul Imin, Alex Adronov, Fuyong Cheng
Rok vydání: 2010
Předmět:
Zdroj: Chemistry of Materials. 22:2741-2749
ISSN: 1520-5002
0897-4756
DOI: 10.1021/cm903494f
Popis: A conjugated tertiary amine-functionalized polymer, poly(9,9-bis(diethylaminopropyl)-2,7-fluorene-co-1,4-phenylene), was synthesized and employed in the supramolecular functionalization of single-walled carbon nanotubes. The formation of stable solutions in organic solvents, as well as in water upon protonation of the amine groups, indicates strong supramolecular interactions between the polymers and the carbon nanotube surface. UV−vis absorption spectroscopy and Raman spectroscopy were utilized to characterize the resulting functionalized nanotubes and it was found that the nanotube structure was unchanged due to the nature of noncovalent functionalization, thus preserving the nanotube’s inherent properties. Electrophoretic deposition techniques were developed to create uniform films of this polymer and also a mixture of the polymer with the supramolecularly functionalized carbon nanotubes. The deposition mechanism involves the electrophoresis of the charged polymer species in an acid solution followed b...
Databáze: OpenAIRE