15393 IUPAC Gold Book - cross-propagation 10.1351/goldbook.15393 15393 current 1 Propagation reaction in a copolymerization in which a chain carrier, bearing at its active end a monomer unit of one kind, reacts with a monomer molecule of another kind. The recommended symbol for the rate constant of cross-propagation in a binary copolymerization is \(k_{ij}\) , in which \(i\) and \(j\) refer to (a) the type of terminal monomer unit of the chain carrier and (b) the reacting monomer molecule, respectively. binary copolymerization https://goldbook.iupac.org//terms/view/15383 PAC, 2008, 80, 2163. 'Glossary of terms related to kinetics, thermodynamics, and mechanisms of polymerization (IUPAC Recommendations 2008)' on page 2172 (https://doi.org/10.1351/pac200880102163) https://goldbook.iupac.org/terms/view/15393/html https://goldbook.iupac.org/terms/view/15393/json https://goldbook.iupac.org/terms/view/15393/plain Citation: 'cross-propagation' 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.15393 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. 2026-04-18T06:55:09+00:00