Term: catalytic chain termination
https://doi.org/10.1351/goldbook.08940

Definition:
Chain termination process involving transfer of a group to a reagent (the catalyst) that in turn transfers that group to a propagating species to terminate a chain and regenerate the original reagent.

Note: Catalytic chain termination may be observed as a side reaction in certain reversible-deactivation radical polymerizations.

Related Term: reversible-deactivation radical polymerizations (http://doi.org/10.1351/goldbook.08916).
Related Term: propagating species (http://doi.org/10.1351/goldbook.08966).

Source: PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1116 (https://doi.org/10.1515/pac-2020-1211)

Citation: 'catalytic chain termination' 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.08940

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