{"term":{"id":"08947","title":"chain-transfer agent","longtitle":"IUPAC Gold Book - chain-transfer agent","doi":"10.1351\/goldbook.08947","code":"08947","status":"current","initialism":"<em>initialism<\/em>: CTA","synonym":"<em>synonym<\/em>: transfer agent","definitions":[{"id":1,"text":"Substance able to react with a chain carrier by a reaction in which the original chain carrier is deactivated and a new chain carrier is generated.","notes":{"1":"In a polymerization, the common occurrence is that a new chain carrier of lower molar mass is generated."},"sources":["PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1119 (https:\/\/doi.org\/10.1515\/pac-2020-1211)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/08947\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/08947\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/08947\/plain"},"citation":"Citation: 'chain-transfer agent' 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.08947","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.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","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.","accessed":"2026-06-21T23:07:28+00:00"}}