“…According to the FTIR analysis spectra results, the incorporation of the SiC filler into the PMMA matrix was obtained for all nanocomposites during polymerization process, which can be observed by presence of absorption bands related to silicon carbide and PMMA polymer ( Figure 2) According to the literature, absorption bands at 994-703 cm -1 and 1240-1247 cm -1 , can be attributed to stretching vibrations of Si-C (υSi-C) and to the bending vibration of Si-C (δSi-C), respectively 18 ; in the spectra of the obtained nanocomposite, these absorptions are coupled with PMMA vibrational modes. All nanocomposites (U-PMMA/SiC and T-PMMA/ SiC) presented intense absorption bands at 1724 cm -1 , which were associated to stretching of carbonyl group (C=O), belonging to the PMMA polymer.…”