Term: polyacid
https://doi.org/10.1351/goldbook.PT07217

Definition:
In polymer terminology, polyelectrolyte composed of macromolecules containing acid groups on a substantial fraction of the constitutional units.

Note: Most commonly, the acid groups are –COOH , –SO3H, or –PO3H2 .

Related Terms:
1) polyelectrolyte (http://doi.org/10.1351/goldbook.P04728).

Source: PAC, 2006, 78, 2067. 'Terminology of polymers containing ionizable or ionic groups and of polymers containing ions (IUPAC Recommendations 2006)' on page 2072 (https://doi.org/10.1351/pac200678112067)

Citation: 'polyacid' 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.PT07217

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