11545 IUPAC Gold Book - adhesion 10.1351/goldbook.11545 11545 current synonym: tack 1 Attachment of interfaces between phases or components that is maintained by intermolecular forces, chain entanglements, or both. Interfacial adhesion is also referred to as tack. Adhesive strength (recommended symbol: \(F_{\rm{a}}\), unit: \(\pu{N m^{-2}}\)) is the force required to separate one condensed phase domain from another at the interface between the two phase domains divided by the area of the interface. Interfacial tension (recommended symbol: \(\upgamma\), unit: \(\pu{N m^{-1}}\), \(\pu{J m^{-2}}\)) is the change in Gibbs energy per unit change in interfacial area for substances in physical contact. PAC, 2020, 92, 1861. 'Terminology of polymers in advanced lithography (IUPAC Recommendations 2020)' on page 1866 (https://doi.org/10.1515/pac-2018-1215) https://goldbook.iupac.org/terms/view/11545/html https://goldbook.iupac.org/terms/view/11545/json https://goldbook.iupac.org/terms/view/11545/plain Citation: 'adhesion' 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.11545 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. 2026-07-14T05:31:00+00:00