Term: reversible-deactivation polymerization https://doi.org/10.1351/goldbook.08912 Definition: Chain polymerization, propagated by chain carriers that are deactivated reversibly, bringing them into active-dormant equilibria of which there might be more than one. Example: Group-transfer polymerization. Example: Array Related Term: group-transfer polymerization (http://doi.org/10.1351/goldbook.08910). Source: PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1101 (https://doi.org/10.1515/pac-2020-1211) Citation: 'reversible-deactivation polymerization' 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.08912 License: 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. Disclaimer: 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.