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(Color online) Dependence of the ratio of terminal particle diffusion coefficient Dt and “unentangled” diffusion coefficient Dun of intermediate size particles (defined by eq. 38) on the ratio of particle and polymer sizes d/R in polymer solutions and melts. Empty symbols are molecular dynamics simulation data from ref. 46 and filled circles are experimental data from ref. 3. Solid line is the prediction of our scaling model (eq. 39).
