intrinsic viscosity

of a polymer
Synonym: limiting viscosity number
The limiting value of the @[email protected], \(\frac{\eta _{\text{i}}}{c}\) or the @[email protected], \(\eta _{\text{inh}}\), at infinite dilution of the polymer, i.e. \[[\eta] = \lim _{c\rightarrow 0}\frac{\eta _{\text{i}}}{c}=\lim _{c\rightarrow 0}\eta _{\text{inh}}\]
  1. This term is also known in the literature as the Staudinger index.
  2. The unit must be specified; \(\text{cm}^{3}\ \text{g}^{-1}\) is recommended.
  3. This quantity is neither a @[email protected] 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.
Purple Book, 1st ed., p. 63 [Terms] [Book]