The grafting of polybutylene oxide onto purified and functionalized carbon nanofibers is reported. Grafting was possible after the insertion of 2-(formyloxy)ethyl 2-bromo-2-methylpropanoate onto the carbon nanofibers. The polymerization of tetrahydrofuran was mediated by copper(I) bromide and 1,1,4,7-pentamethyl diethylenetriamine. The polymer-grafted carbon nanofibers were characterized by Raman spectrsocopy, Transmission Electron Microscopy, and Thermogravimetric Analysis. TEM images of CNF-COOH (A), CNF-PBO (B), completely open tip of CNF-COOH, and coated tip of CNF-PBO (D) are shown in the left panel. The right panel depicts the distribution of bromine (blue), and carbon (red) atoms inside and in the vicinity of CNF-Br (as obtained by Electron Energy Loss Spectroscopy). The bottom shows the actual doped CNF. Preliminary data showed that these modified fibers have potential applications as smart (electrorheological) fluids.
Ramos, C. T., Thapa, R., Lozano, K., Chipara, M., Ferrer, D., & Gutierrez, J. J. (2011). Synthesis and Characterization of Poly(butylene Oxide) Grafted Carbon Nanofibers. Journal of Nanoscience and Nanotechnology, 11(5), 3965–3969. https://doi.org/10.1166/jnn.2011.3828
Journal of Nanoscience and Nanotechnology