2.5.1. Fourier-Transform Infrared Spectroscopy (FTIR)

FTIR spectra of the films were obtained between 4000 and 600 cm−<sup>1</sup> using a Nicolet iS10 smart iTRBasic (Thermo Fisher Scientific, Waltham, MA, USA) model, with 64 scans and a 4 cm−<sup>1</sup> resolution [19].
