Simulate a Polymer at Thermal Equilibrium
        
Entanglements  (High 
level Entanglements,
Processing Plots of log Viscosity versus Mw)
                Polymer Melt Rheology, Mm 

From F. W. Billmeyer, Jr. "Textbook of Polymer Science" 1994.
Size Exclusion Chromatography (Gel Permeation Chromatography)

From Hans-Georg Elias, Macromolecules 2005 ([2] = B. Wunderlich Macromolecular Physics vol. 3 1980)