Title: chemical functionality
Long Title: IUPAC Gold Book - chemical functionality
DOI: 10.1351/goldbook.CT07503
Status: current

Definition
Ability of functional groups present within a polymer or polymer network to participate in chemical reactions.

Note
The chemical functionality of a network formed by a sol-gel process from a precursor such as $\ce{(RO)3Si–CH=CH2}$ is that of the vinyl group.

Related Terms
- network: https://goldbook.iupac.org//terms/view/NT07562
- polymer network: https://goldbook.iupac.org//terms/view/P04742
- sol-gel process: https://goldbook.iupac.org//terms/view/ST07151

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 1804 (https://doi.org/10.1351/pac200779101801)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/CT07503/html
- json: https://goldbook.iupac.org/terms/view/CT07503/json
- xml: https://goldbook.iupac.org/terms/view/CT07503/xml

Citation: Citation: 'chemical functionality' 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.CT07503
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.
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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: 2026-04-18T23:21:23+00:00