Viscosity‐molecular weight relationships for poly p‐chlorostyrene

Viscosity, osmotic pressure and light scattering measurements have been carried out on fractions of poly p‐chlorostyrene. The viscosity‐molecular weight relationships have been established. The KUHN‐HOUWINK constants obtained by different workers show wide divergence. However, the constant KΘ obtained by different workers from different extrapolation methods, is in good agreement with the value of 5.2·10−4. The same value is obtained using [η]R, the ordinate at the common point of intersection of the In ηr/c vs. c Plots for the same polymer in different solvents.