Inherent viscosity

In polymer science, inherent viscosity is the ratio of the natural logarithm of the relative viscosity of a polymer to its mass concentration.[1]

Inherent viscosity is defined as [2]

where c is the mass concentration of the polymer (g/dL) and is the relative viscosity, which is defined as

where is the viscosity of the solution and is the viscosity of the solvent.

The unit of inherent viscosity is dL/g.


  1. ^ "Dilute Solution Viscosity of Polymers".
  2. ^ "IUPAC".