On the Interdiffusion Coefficient in Entangled Polymeric Mixtures
Walter Hess, H. L. Frisch · Europhysics Letters (EPL) · 1988
Using an expression for the tracer diffusion coefficient which is obtained from a microscopic concept of entanglement friction, it is shown that two concurring expressions for the interdiffusion coefficient, D fast and D slow , are the same. The interdiffusion process in a mixture of two polymers is dominated by the fast component.