Decorating Multi-Walled Carbon Nanotubes with Temperature-Responsive Polymer Shells via Surface-Initiated Redox Polymerization

作者:Yang Zhi*; Yang Xingkai; Chen Shufen; Zhang Chunlan
来源:Journal of Macromolecular Science, Part A: Pure and Applied Chemistry , 2014, 51(12): 999-1003.
DOI:10.1080/10601325.2014.967098

摘要

The temperature-responsive multi-walled carbon nanotubes (MWCNTs) were prepared by decorating MWCNTs with poly(N-isopropylacrylamide) (PNIPAM) chains via surface-initiated redox polymerization. Chemical structure of resulting product and the quantities of grafted polymer were determined by FT-IR and TGA. TEM and FE-SEM images clearly indicate that the nanotubes were coated with a PNIPAM layer. DSC analysis indicates that the functionalized MWCNTs can respond to temperature, because of the hydrophilic and hydrophobic transformation of the bonded PNIPAM chains at 30-35 degrees C.