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Download fileModification of Multiwall Carbon Nanotubes with Initiators and Macroinitiators of Atom Transfer Radical Polymerization
journal contribution
posted on 2007-12-11, 00:00 authored by Ying-Ling Liu, Wei-Hong ChenFunctionalization on carbon nanotube (CNT) was performed through the addition reaction between
the initiators of atom transfer radical polymerization (ATRP) and CNT. The ATRP initiating groups transferred
to the CNT surface with this reaction. The modified CNT then served as an ATRP macroinitiator for further
modification. Both linear poly(styrene) and V-shaped poly(styrene-b-N-isopropylacrylamide) block copolymers
were therefore covalently bound to the CNT surface. Characterization on the functionalized CNTs was performed
with FTIR, Raman spectroscopy, and an X-ray photoelectron spectrophotometer (XPS). The functionalized CNTs
exhibited good solubility in organic solvents. In addition, amphiphilic and temperature-responsive properties
were observed with the CNTs functionalized with poly(styrene-b-N-isopropylacrylamide).