“…We assume that these values reflect the mass-averaged number of associated building blocks ⟨ N assc ⟩ w , which clearly, as a consequence of the hydrogen bond interactions weakening, decreases with temperature. Moreover, in the Rouse regime, using the zero-shear viscosity, both the segmental relaxation time τ s , as well as the expected Rouse time τ R , can be extracted for PPO polymer by the following equations: ,,, τ s = 12 M n η 0 N A N 2 ρ π 2 k B T τ normalR = N 2 τ normals where ρ is the density of the polymer melt, N A the Avogadro number, k B the Boltzmann constant and M n and N are given above (these results for τ s and τ R are shown in Figure a). In order to extract the terminal relaxation time, τ t and compare it with the calculated Rouse time, a function composed of a generic peak function ,, to account for contributions of the chain dynamics is adjusted to the master curve data for PPO backbone (see Figure a): G ′ = normalG normale ω 2 τ t 2 ω 2 τ t 2 …”