Gladiatr accessory

FTIR spectra were collected on a Nicolet iS50 FTIR spectrometer (Thermo Scientific) with a built-in diamond iS50 ATR sampling station in the MIR range of 4000–400 cm⁻¹. Each spectrum was recorded from 16 scans with a resolution of 4 cm⁻¹. The high-temperature FTIR spectrum of MTZ (at the melting point of 438 K) was measured using a GladiATR accessory (Pike Technologies, Madison, WI, USA) coupled with an FTIR spectrometer in the range 4000–400 cm⁻¹ (16 scans; spectral resolution of 2 cm⁻¹).

The infrared spectra were recorded with a PerkinElmer Spectrum 3 ATR-FTIR spectrometer (PerkinElmer, Waltham, MA, USA) The GladiATR accessory, (PIKE Technologies, Madison, WC, USA) contained a monolithic diamond crystal. A total of 16 scans with a resolution of 4 cm⁻¹ were acquired from each sample. All the spectra were recorded at room temperature in a wavenumber range between 4000 and 600 cm⁻¹.
The FTIR microscopy mapping was performed using the FTIR PerkinElmer Spectrum 3 with the Spotlight 200i frontier microscope (PerkinElmer, Waltham, MA, USA). The mapping was performed on the surface of the injection-molded samples at sizes of 5 × 5 mm for each material produced. On the examined surface a mesh combination of 25 × 25 markers was determined with 100 µm spacing between them (as shown in Figure 1). The size of the aperture was set to 100 × 100 µm. The measurements were performed in ATR mode with a diamond ATR crystal using 18% of force. A total of 16 scans with a resolution of 4 cm⁻¹ were acquired from each sample. All the spectra were recorded at room temperature in a wavenumber range between 4000 and 700 cm⁻¹. The results obtained were analyzed using the SpectrumIMAGE software (version: R1.11.2.0016) from PerkinElmer. For samples r3L and rDSM, the spectra obtained on the surface were compared with the PP spectra, and for sample rEL with the PA 6 spectra.