“…Refs. [33,34] provide the values for the plateau modulus, G 0 N , the mass density, ρ m , the ratio of the mean-square end-to-end distance to the molecular weight of the polymer, R 2 /M, and the packing length, p = M/( R 2 ρ m N A ), where N A is the Avagadro number. All the melt data points obey the empirical relation G 0 N = 0.00226k B T /p 3 , indicated as the dashed line in Fig.…”