Functionalization of carbon nanofibers (CNFs) through atom transfer radical polymerization for the preparation of poly(tert‐butyl acrylate)/CNF materials: Spectroscopic, thermal, morphological, and physical characterizations

Abstract

Vapor-grown carbon nanofibers (CNFs) were oxidized and functionalized for atom transfer radical polymerization (ATRP) of tert-butyl acrylate (t-BA) from the surface of the CNFs. The materials were characterized by solubility tests, Fouriertransform infrared (FTIR) spectroscopy, Raman spectroscopy, thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy. The FTIR and electron microscopy results suggest that ATRP process was successfully used to graft poly(tert-butyl acrylate) (poly(t-BA)) chains from the surface of the fibers. Raman results strongly indicate the partial degradation of the graphitic layer of CNFs because of the chemical treatments. TGA results suggest that the presence of poly(t-BA) leads to a decrease of the initial degradation temperature of the fibers. XRD and electron microscopy results indicate that the microstructure of fibers was not destroyed because of the oxidation and functionalization processes. V

Impact of Filler Functionalisation on the Crystallinity, Thermal Stability and Mechanical Properties of Thermoplastic Elastomer/Carbon Nanotube Nanocomposites

“…Moreover, due to the presence of hydrophilic –OH groups, the MWCNT‐OH are prone to absorb water. A similar behaviour was observed for carbon nanofibres functionalised with ethylene glycol 49. Table 3 contains the information extracted from the TGA curves from the nanotubes before and after the functionalisation with BD.…”

Polyamide‐12/Functionalized Carbon Nanofiber Composites: Evaluation of Thermal and Mechanical Properties

“…This peak is associated to the decomposition of the polar groups at the surface of the oxidized CNF fibers. Apart from the carboxylic acids; anhydride, lactones, and quinones may be formed during the oxidation of CNF, as reported by previous papers 40, 41. Therefore, thermal stability of oxidized CNF decreases, due to the incorporation of functional groups on account of the nitric acid‐assisted partial oxidation of the fibers 40, 41…”

“…The two naturally occurring peaks in the Raman spectra of carbon structures, namely the D and G band, are found in CNF at around 1 360 and 1 580 cm −1 , respectively 37, 38, 41. These features provide information about the structural integrity of the material.…”

Influence of compartmental involvement on the patterns of morbidity in soft tissue sarcoma of the thigh

“…Controlled radical polymerization, such as atom transfer radical polymerization (ATRP),21–23 is an effective approach to prepare well‐defined polymers. The surface‐initiated ATRP has been widely studied to introduce well‐defined polymer brushes to various substrate surfaces, like silicon,24 particles,25, 26 nanofibers,27 nanotubes,28 montmorillonite,29, 30 and porous polymeric substrates,31–34 and consequently to endow the substrates with versatile properties and functionalities 21–34. For most cases, surface‐initiated ATRP requires immobilization of the initiating groups of ATRP to the substrate surfaces.…”