intensities
Figure 6:Percentage intensities Ii/Itot (i = 1, 2, 3, 4, expressed in %) of the different spectral components of the O-H stretching band as a function of the hydration level h for γ-CDEDTA16 hydrogel. Inset: h-evolution of the corresponding centre-frequencies ωi (i = 1, 2, 3, 4, expressed in cm-1).