Figure 3

Integrated area variation of the peaks monitoring with Raman in situ analysis: (a) gly-acNon and, (b) gly-alkNon. We assigned these peaks to the stretching νCC + νCN at 888 cm⁻¹ and, to the symmetric stretching, ν_sCH, and asymmetric stretching, ν_asCH, at 2,968 and 3,003 cm⁻¹, respectively⁴². Bar errors represent the standard deviation of three consecutive spectra, variability in the spectra is due to technical limitations to improving the quality of the spectra.