698141.fig.004
Figure 4: CPMAS 13C NMR spectra of nanocomposite films, BC/PHEMA/PEGDA (1 : 3 : 0), (1 : 1.5 : 0), and (1 : 0.75 : 0), BC/PHEMA/PEGDA (1 : 0.75 : 0.01) and of PHEMA/PEGDA (1 : 0) and BC.