Hyperion spectrometer

Non-isothermal crystallization and melting behaviors of the samples were performed on a differential scanning calorimeter (DSC, 204 F1, NETZSCH, Berlin, Germany) equipped with an intercooler as cooling system under an argon atmosphere; the heating and cooling rates were set as 10 °C/min. Fourier transformation infrared (FTIR) spectra were recorded on a Hyperion spectrometer (Bruker, Karlsruhe, Germany) by signal averaging over 32 scans in the wavenumber range of 4000~400 cm⁻¹; the spectrometer was equipped with a hot stage (THMS-600, Linkam, Surrey, UK) for temperature-resolution FTIR measurement.

FTIR was carried out in a Hyperion Spectrometer (Bruker, Santa Clara, CA, USA) with an attenuated total reflection (ATR) target. These measurements allow knowing the bonds that make up the systems, since they emit at different wavelengths. Thus, this analysis allows evaluating the differences between the systems. The infrared spectra were obtained at 4000–1250 cm⁻¹ with an opening of 100 cm⁻¹.