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. 2026 Jul 17;12(29):eaed4780. doi: 10.1126/sciadv.aed4780

Fig. 4. Thermomechanical properties of the BPreT/BPerT polymer networks.

Fig. 4.

(A) FTIR spectra of the networks. a.u., arbitrary units. (B) TGA thermograms from 110° to 600°C at a heating rate of 10°C min−1. (C) DSC thermograms of the second heating cycle from −50° to 200°C at a heating rate of 10°C min−1, with the Tg indicated by the vertical lines. (D) DMA thermogram from −50° to 200°C at a heating rate of 5°C min−1, 1 Hz, and 1 μm. (E) Representative stress versus strain curves obtained from uniaxial tensile testing, tested at 10 mm min−1. (F) Example image of a 100% BPreT dogbone before and after tensile analysis.