Application of the MLD “toy” model to extensional flows of broadly polydisperse linear polymers: Part II. Comparison with experimental data

► We quantitatively test the new diluted stretch tube polydisperse MLD model with experimental data in transient stretching flows. ► We show that the new diluted stretch tube formalism is essential to have quantitative agreement with data. ► We analyze the principal stretching flows and quantitatively rationalize the relative order in strength of stretching for these flows.