15423 IUPAC Gold Book - topochemical polymerisation 10.1351/goldbook.15423 15423 current 1 Solid-state polymerization, resulting in the formation of a polymer having essentially the same crystal structure as that of the monomer. A topochemical polymerization is usually initiated by irradiation of the crystalline monomer with, e.g., ultraviolet light, γ-rays, or by chemical initiators. A topochemical polymerization does not involve significant atomic or molecular motions. Solid-state polymerization https://goldbook.iupac.org//terms/view/15421 PAC, 2008, 80, 2163. 'Glossary of terms related to kinetics, thermodynamics, and mechanisms of polymerization (IUPAC Recommendations 2008)' on page 2185 (https://doi.org/10.1351/pac200880102163) https://goldbook.iupac.org/terms/view/15423/html https://goldbook.iupac.org/terms/view/15423/json https://goldbook.iupac.org/terms/view/15423/plain Citation: 'topochemical polymerisation' 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.15423 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. 2026-04-18T05:26:25+00:00