intrinsic viscosity of a polymer

The limiting value of the reduced viscosity, $η i c$ or the inherent viscosity, $η inh$ , at infinite dilution of the polymer, i.e.

$η = lim c → 0 η i c = lim c → 0 η inh$

Notes:

This term is also known in the literature as the Staudinger index.
The unit must be specified; $cm 3 g −1$ is recommended.
This quantity is neither a viscosity nor a pure number. The term is to be looked on as a traditional name. Any replacement by consistent terminology would produce unnecessary confusion in the polymer literature. Synonymous with limiting viscosity number.

Source:

intrinsic viscosity