Fig. 2: The effect of [EtA⁺][NO₃−] mobility in the PHEA on electromagnetic properties.
From: Adaptive ionic liquid polymer microwave modulation surface with reprogrammable dielectric properties
![Fig. 2: The effect of [EtA⁺][NO₃−] mobility in the PHEA on electromagnetic properties.](http://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41467-025-68170-w/MediaObjects/41467_2025_68170_Fig2_HTML.png?as=webp)
a In situ FTIR of IL-P-2 under thermal stimulation. b, c VT-FTIR synchronous and asynchronous correlation spectroscopy. d T₁ and T₂ spectra of IL-P-2 in low-field NMR under different temperature stimuli. e, f 2D low-field ¹H NMR spectra at 30 and 130 °C. g ε′ of IL-P-0 and IL-P-2. h Dielectric loss fitting results for IL-P-0. i Dielectric loss fitting results for IL-P-2. j Mechanism of temperature stimulus on the ε″ of IL-P.
