Synthesis, characterization and stability of chitosan and poly(methyl methacrylate) grafted carbon nanotubes.
The single walled carbon nanotubes (CNTs) were effectively functionalized through grafting with chitosan (CTS) and poly(methyl methacrylate) (PMMA). Prior to grafting reaction, the carboxylated SWNCTs (SWNCTs-COOH) were obtained by treating pristine CNTs with a mixture of 3:1 (v/v) H(2)SO(4) and HNO(3), and the successive treatment of SWNCTs-COOH with SOCl(2) yielded the acylated CNTs (CNTs-COCl). The functionalized derivatives of CNTs were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, atomic force microscopy, scanning electron microscopy and transmission electron microscopy. Both CTS and PMMA grafted CNTs showed better dispersability in acetic acid and tetrahydrofuran, in addition to higher stability in solution.
Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA.
Laura
L
Carson
Kemar
K
Hibbert
Feyisayo
F
Akindoju
Chevaun
C
Johnson
Melisa
M
Stewart
Cordella
C
Kelly-Brown
Gavannie
G
Beharie
Tavis
T
Fisher
Julia
J
Stone
Dahlia
D
Stoddart
Aderemi
A
Oki
Gururaj M
GM
Neelgund
Gloria
G
Regisford
Pasakorn
P
Traisawatwong
Jianren
J
Zhou
Zhiping
Z
Luo
D019342:Acetic Acid / Q000737:chemistry; D048271:Chitosan / Q000138:chemical synthesis* / Q000737:chemistry*; D005663:Furans / Q000737:chemistry; D018625:Microscopy, Atomic Force; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D019904:Polymethyl Methacrylate / Q000138:chemical synthesis* / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry
D005663:Furans; D037742:Nanotubes, Carbon; C018674:tetrahydrofuran; D019904:Polymethyl Methacrylate; D048271:Chitosan; D019342:Acetic Acid