intrinsic viscosity 

of a polymer
Synonym: limiting viscosity number
https://doi.org/10.1351/goldbook.I03140
The limiting value of the reduced viscosity, ηic or the inherent viscosity, ηinh, at infinite dilution of the polymer, i.e. [η]=limc→0ηic=limc→0ηinh
Notes:
  1. This term is also known in the literature as the Staudinger index.
  2. The unit must be specified; cm3 g−1 is recommended.
  3. 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:
Purple Book, 1st ed., p. 63 [Terms] [Book]
Citation: 'intrinsic viscosity' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.I03140 RIS BibTex EndNote
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Last revised: February 24, 2014