08970 IUPAC Gold Book - stable radical 10.1351/goldbook.08970 08970 current 1 Mediating agent in stable-radical-mediated radical polymerization with sufficient kinetic stability such that it is essentially unreactive towards addition to monomer under the conditions of the experiment. The stable radical mediating agent need not be thermodynamically stable Mediating agent https://goldbook.iupac.org//terms/view/08964 chain activation https://goldbook.iupac.org//terms/view/08941 stable-radical-mediated radical polymerization https://goldbook.iupac.org//terms/view/08921 PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1125 (https://doi.org/10.1515/pac-2020-1211) https://goldbook.iupac.org/terms/view/08970/html https://goldbook.iupac.org/terms/view/08970/json https://goldbook.iupac.org/terms/view/08970/plain Citation: 'stable radical' 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.08970 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. 2026-05-30T09:39:13+00:00