Fig. 5 | Nature Communications

Fig. 5

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

Fig. 5

Aggregation-induced emission (AIE) properties of as-prepared polyamides and ultra-strong elastomers (uEs). a Photo of P4 under visible light; b photo of P4 under 365 nm light, emitting strong blue fluorescent; c ultraviolet–visible (UV–vis) absorption (red line) and fluorescent emission (black line) spectra of P4; df fluorescence images of uE4 fibers observed under a microscope with a diode laser under varied excited wavelengths (340–390, 460–495, and 530–550nm); g photos of P4 during stretching excited by 365 nm UV lamp; h schematic illustration on the luminescent mechanism of polyamides