Fig. 2 | Nature Communications

Fig. 2

From: Ultra-strong long-chain polyamide elastomers with programmable supramolecular interactions and oriented crystalline microstructures

Fig. 2

Characterization of polyamides P0–P7. a Differential scanning calorimetry (DSC) heating curves; b one-dimensional (1D) wide-angle X-ray diffraction (WAXD) profiles; c Fourier-transform infrared spectroscopy (FT-IR) spectra in the 1500–1700 cm−1 region for P0–P7; d the change of FT-IR peak intensity of free/disordered/ordered hydrogen bonded C=O for P0–P7 as a function of UDA content; e variable temperature FT-IR spectra of P6 in the 1500–1700 cm−1 region; f the change of FT-IR peak intensity of free/disordered/ordered hydrogen bonded C=O for P6 as a function of temperature; g proposed molecular models for crystalline domain and amorphous region

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