14272 IUPAC Gold Book - supercooled melt 10.1351/goldbook.14272 14272 current antonym: undercooled melt 1 Metastable melt of a crystallizable polymer at temperatures below its equilibrium melting temperature \(T^{\circ}_{\rm{m}}\). The term is not applicable to the amorphous component of a crystalline polymer, i.e., after crystallization has occurred. PAC, 2011, 83, 1831. 'Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)' on page 1866 (https://doi.org/10.1351/PAC-REC-10-11-13) https://goldbook.iupac.org/terms/view/14272/html https://goldbook.iupac.org/terms/view/14272/json https://goldbook.iupac.org/terms/view/14272/plain Citation: 'supercooled melt' 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.14272 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. 2026-06-29T00:19:37+00:00