Construction of the segmental OACF, C(t), for an entangled linear melt of PB (MW of 55 kDa) from (a) normalized DQ build-up data, InDQ(τDQ). (b) Division by τDQ2 provides a quantity proportional to C(τDQ). (c) Time-temperature superposition, realized by division of the time axis by the predicted entanglement time τe,th(T) using its known T dependence, is then used to construct the full C(t/τe). It exhibits the characteristic slopes in a log–log plot representing the power-law exponents and the indicated regime transitions of the tube model (τR: Rouse time, τd: disentanglement time). Small but systematic deviations of the time scaling exponents α and ε from their predictions are due to limitations of the idealized model. Reproduced from ref. 55 with permission from the American Chemical Society, Copyright 2018.