The Rotatory Diffusion Constants of Flexible Molecules

Abstract

Using the model and methods of a previous paper, the average components of the rotary diffusiontensor of a flexible molecule are calculated. The results obtained are found to be related to both the intrinsic viscosity and to the translational diffusion constant. In particular the rotatory diffusion constant of the molecule as a whole is shown to be a simple function of the intrinsic viscosity. The theory developed, in conjunction with the theory of intrinsic viscosity and translational diffusion coordinates the result of the various hydrodynamical physical methods used in high polymer research.