Raman data: WITec Alpha 300 R confocal Raman microscope (WITec GmbH, Ulm, Germany) in backscattering geometry.ĪTR-FTIR data: Bruker Tensor 27 (Bruker Optics, Ettlingen, Germany) with a single Reflection attenuated total reflectance (GladiATR™) accessory (Pike Technologies, Fitchburg, Wisconsin, United States) Structure of melt-spun mono- and bicomponent filaments. 'High-resolution 2D Raman mapping of mono- and bicomponent filament cross-sections' [ For more information, see the publication by E. Presented analysis techniques and results thereof are (i) Raman mapping of filament cross-sections: 2D maps of peak positions, widths, peak area ratios (ii) attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR): ATR-FTIR spectra and extraction of surface crystallinity (iii) wide-angle x-ray diffraction (WAXD): WAXD patterns and extraction of average crystallinity (iv) small-angle x-ray scattering (SAXS): SAXS patterns and determined crystallite sizes and long-spacings (v) differential scanning calorimetry (DSC): thermograms and extracted average crystallinity as well as thermal properties (vi) atomic force microscopy (AFM): AFM image of the surface of an embedded fiber cross-section. The diameters of the single filaments range from 27 µm to 79 µm. This data in brief article summarizes structural data obtained from monocomponent melt-spun and offline drawn poly(ethylene terephthalate) (PET) monofilaments, as well as from melt-spun bicomponent core-sheath PET-polyamide 6 (PA6) filaments.

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