“…[26,30] There are three polymer populations in NMP: active or free radical polymer molecules, R ψ s ð Þ, dormant polymer molecules, PON x,ψ s ð Þ, and inactive or dead polymer molecules, P ψ s ð Þ, of size s = 1,2, …, ∞. [26] A large number of ordinary differential equations (ODEs) must be solved to calculate full polymer molar mass distributions for each polymer population. The estimation of average properties for each polymer population is enormously simplified if the method of moments, as defined by Equations ( 5)-( 7), is used.…”