Research Article

Mechanical Behavior of Nanostructured Hybrids Based on Poly(Vinyl Alcohol)/Bioactive Glass Reinforced with Functionalized Carbon Nanotubes

Figure 4

FTIR spectra of PVA/BaG (a) and PVA/BaG/CNT–COOH (b) hybrids in selected ranges of the IR spectrum: (A) 4000–600 cm−1, (B) 4000–2800 cm−1 (Region 1), and (C) 1800–1500 cm−1 (Region 2). Inset: schematic illustration of hydrogen bonds formed between hydrophilic chemical groups (hydroxyls and carboxyls).