Microwave-assisted covalent sidewall functionalization of multiwalled carbon nanotubes

Chemistry : a European Journal
Junxin Li, Helena Grennberg

Abstract

Thermal cycloaddition of 1,3-dipolar azomethine ylides to the sidewalls of multiwalled carbon nanotubes (MWNTs) has been used to prepare MWNTs that contain 2-methylenethiol-4-(4-octadecyloxyphenyl) (4), N-octyl-2-(4-octadecyloxyphenyl) (5) or 2-(4-octadecyloxyphenyl)pyrrolidine (6) units. All these contain the 4-octadecyloxyphenyl substituent that acts as a solubilizing group. Microwave (MiW)-assisted heating was found to be highly efficient for soluble MWNTs, for which the amount of added groups after only 2 h of MiW heating at 200 degrees C, determined by using thermogravimetric analysis, was found to be in the same range as that obtained after 100-120 h of conventional heating of soluble and insoluble MWNTs. Solubility is a key feature for a successful MiW-heated reaction; MWNTs insoluble in the reaction medium yielded considerably less addends in the MiW-heated reactions than in the conventionally heated reaction. The location and even distribution of the pyrrolidine units over the outermost layer of the MWNTs was verified by transmission electron microscopy analysis of 4 that had been treated with gold nanoparticles and thoroughly washed to remove gold particles adsorbed on nonfunctionalized parts of the MWNTs.

References

Jun 5, 1998·Science·J LiuR E Smalley
Oct 2, 1998·Science·J ChenR C Haddon
May 21, 1999·Science·R H BaughmanM Kertesz
Jan 29, 2000·Science·J KongH Dai
Jan 31, 2002·Journal of the American Chemical Society·Vasilios GeorgakilasAndreas Hirsch
Jul 19, 2002·Chemical Communications : Chem Comm·M T MartínezJ L G Fierro
Nov 15, 2002·Chemical Communications : Chem Comm·Ester VázquezMaurizio Prato
Nov 28, 2002·Journal of the American Chemical Society·Vasilios GeorgakilasHans Kuzmany
Dec 18, 2002·Accounts of Chemical Research·Robert C Haddon
Jan 23, 2003·Chemical Communications : Chem Comm·Vasilios GeorgakilasMaurizio Prato
Sep 13, 2003·Science·K KamarasR C Haddon
Dec 4, 2003·Journal of the American Chemical Society·Hui HuRobert C Haddon
Dec 18, 2003·Journal of the American Chemical Society·Zhaoling YaoAlex Adronov
Jul 28, 2004·Chemical Communications : Chem Comm·Juan L DelgadoJuan T López Navarrete
Nov 24, 2004·Angewandte Chemie·C Oliver Kappe
May 11, 2005·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Jijun ZhaoJian Ping Lu
Jul 9, 2005·Nature Materials·Kai Nordlund, Pertti Hakonen
Jul 21, 2006·The Journal of Physical Chemistry. B·Mercedes AlvaroHermenegildo Garcia
Jun 3, 2002·Angewandte Chemie·Andreas Hirsch

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Citations

Nov 25, 1977·Biochimica Et Biophysica Acta·J E GomezD W Darnall
Nov 22, 2008·International Journal of Biological Macromolecules·Jin-Gang YuDu-Shu Huang
Sep 2, 2011·Chemistry : a European Journal·Indresh KumarJae Whan Cho
Oct 23, 2009·Chemistry : a European Journal·Ivan GuryanovMarcella Bonchio
Jul 6, 2014·Beilstein Journal of Nanotechnology·Victor MamaneBrigitte Vigolo
Dec 15, 2012·Chemistry : a European Journal·Béatrice VanhorenbekeSophie Hermans
Apr 22, 2009·Molecular Diversity·C Oliver Kappe, Doris Dallinger
Oct 5, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Veronica BonuccelliStefano Zacchini
Jun 3, 2008·Journal of the American Chemical Society·Fulvio G BrunettiEster Vázquez
Nov 8, 2007·Journal of the American Chemical Society·Fulvio G BrunettiEster Vázquez
Dec 23, 2009·ACS Nano·Ester Vázquez, Maurizio Prato
Jul 3, 2021·Journal of the American Chemical Society·Shao-Xiong Lennon LuoTimothy M Swager
Jun 16, 2010·Chemical Reviews·Nikolaos KarousisDimitrios Tasis
Mar 4, 2015·ACS Nano·Eric BusseronNicolas Giuseppone

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