TRANSPORT COEFFICIENTS FOR RIGID STAR-LIKE POLYMERS

In this paper, we calculate the rotational and translational diffusion coefficient for a star-like molecule and the shear viscosity for a dilute suspension of these molecules, starting from the Debye-Brinkman equation. For this type of molecules, the calculations can be done exactly, providing reliable insight into draining effects. We also derive simple approximate formulas for the transport coefficients valid in the relevant parameter regime.