Figure 6: Properties of interpenetrating supramolecular networks.

(a) The rheological TTS master curve of a blend M2/D1 (1:4) proved that the rheological features of its pure components were superimposed in the blend, resulting in a broad region with pronounced ‘liquid-like’ behaviour and a large loss factor of up to tan δ=2.0. (b) Temperature-dependent shear rheology of the blend M2/D1 (1:4) in comparison with the pure components revealed that the material underwent a two-stage thermomechanical transition, following the behaviour of D1 in the temperature range of −55 °C to above room temperature, and then M2 between 65 °C and the melting transition at 139 °C. (c) According to the rheological TTS master curve of M2/PIB (MW 75,000 g mol⁻¹) (1:1), the materials had a loss factor of tan δ>0.6 over a very large frequency range. (d) Experimental setup for a random vibration modal analysis test on a sandwich structure comprising a damping layer. The first resonance frequency of the steel structure at 33 Hz and its intensity decrease in the sandwich structure for damping layers based on the blend M2/PIB (MW 75,000 g mol⁻¹) (1:1) and unmodified PIB (MW 200,000 g mol⁻¹). See Supplementary Figs 15–17 and Supplementary Table 2 for more details on shear rheology as well as shift factors a_T and b_T.