Universal self-diffusion coefficients of macromolecules in polymer solutions and melts as a function of concentration and molecular mass

Abstract

On the basis of an analysis of experimentally determined coefficients of self-diffusion D3 for polystyrene, polyethylene oxide (PEO), polydimethylsiloxane, and dextran in different solvents over a wide range of MM variation and concentrations σ, it is shown that there are universal relations between D3 and between D3 and M. © 1989.