Term: pre-gel regime https://doi.org/10.1351/goldbook.PT07506 Definition: Stage of a network-forming polymerization or crosslinking process extending up to, but not beyond, the gel point. Note: The pre-@G02600@ regime may be expressed as the length of time or the chemical conversion required to reach the @GT07535@ from the start of a @P04740@ or @CT07136@ process. Related Terms: 1) gel (http://doi.org/10.1351/goldbook.G02600). 2) gel point (http://doi.org/10.1351/goldbook.GT07535). 3) polymerization (http://doi.org/10.1351/goldbook.P04740). 4) crosslinking (http://doi.org/10.1351/goldbook.CT07136). 5) network (http://doi.org/10.1351/goldbook.NT07562). Source: PAC, 2007, 79, 1801. 'Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)' on page 1805 (https://doi.org/10.1351/pac200779101801) Citation: 'pre-gel regime' 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.PT07506 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. 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.