Evaluating the Reactivity Superiority of Two Different Single-Walled Carbon Nanotube Anions Using An Anhydride Electrophile

Authors : Mustafa K BAYAZİT

Pages : 107-114

View : 20 | Download : 8

Publication Date : 2019-02-01

Article Type : Research Paper

Abstract :Reductive chemistries have widely been used to functionalize single-walled carbon nanotubes insert ignore into journalissuearticles values(SWCNTs);. However, the reactivity of negatively charged SWCNTs insert ignore into journalissuearticles values(NC-SWCNTs);, prepared by different reductive chemistries, to the same electrophilic reagent has not been evaluated. Here in, the first example of the reactivity comparison of two different NC-SWCNTs towards 3-nitrophthalic anhydride is presented, and two novel functionalized SWCNTs are synthesized and characterized. The NC-SWCNTs, that are denoted as [insert ignore into journalissuearticles values(nBu―SWCNTn);-•Lin+] and [SWCNTn-•Lin+], are prepared via n-butyl lithium and lithium naphthalenide addition, respectively, and are reacted by 3-nitrophthalic anhydride under dry conditions. The resulting functionalized SWCNTs are characterized by Raman, UV-vis-NIR, TGA-MS, XPS, and TEM. The reactivity of [insert ignore into journalissuearticles values(nBu―SWCNTn);-•Lin+] towards electrophilic 3-nitrophthalic anhydride is found to be higher than [SWCNTn-•Lin+]. This is probably due to the high nucleophilic character of [insert ignore into journalissuearticles values(nBu―SWCNTn);-•Lin+] which bears lone pair electrons and electron-donating butyl groups
Keywords : Single walled carbon nanotube, reduction, surface functionalization, reactivity