Title: shape-memory polymer Long Title: IUPAC Gold Book - shape-memory polymer DOI: 10.1351/goldbook.ST07194 Status: current Definition Polymer that, after heating and being subjected to a plastic deformation, resumes its original shape when heated above its glass-transition or melting temperature. Note Crystalline trans-polyisoprene is an example of a shape-memory polymer. Related Terms - melting: https://goldbook.iupac.org//terms/view/M03821 - trans: https://goldbook.iupac.org//terms/view/C01092 Source - PAC, 2004, 76, 889. 'Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)' on page 903 (https://doi.org/10.1351/pac200476040889) Other Outputs - html: https://goldbook.iupac.org/terms/view/ST07194/html - json: https://goldbook.iupac.org/terms/view/ST07194/json - xml: https://goldbook.iupac.org/terms/view/ST07194/xml Citation: Citation: 'shape-memory polymer' 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.ST07194 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: 2026-04-18T14:57:16+00:00