08906 IUPAC Gold Book - polyzwitterions 10.1351/goldbook.08906 08906 current synonyms: poly(inner salts), polyamphions, zwitterionic polymers 1 Polymers composed of macromolecules consisting of zwitterionic repeating units (structure-based polymer class name). Polyzwitterions are mostly polyelectrolytes, since their zwitterionic groups are usually located in pendant groups (not in main-chain groups). Polybetaines are a subclass of polyzwitterions. Unlike polyampholytes, polyzwitterions have anions and cations in the same monomeric unit. From the chemical structure point of view, a zwitterionic polymer is an ampholytic polymer containing ionic groups of opposite sign, commonly in the same pendant group. PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 64 (https://doi.org/10.1515/pac-2020-0501) https://goldbook.iupac.org/terms/view/08906/html https://goldbook.iupac.org/terms/view/08906/json https://goldbook.iupac.org/terms/view/08906/plain Citation: 'polyzwitterions' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08906 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-04-18T09:14:00+00:00