03668 IUPAC Gold Book - macromonomer 10.1351/goldbook.M03668 M03668 current 1 Polymer or oligomer the molecules of which each have one end-group that acts as a monomer molecule, so that each polymer or oligomer molecule contributes only a single monomer unit to a chain of the product polymer. The homopolymerization or copolymerization of a macromonomer yields a comb or graft polymer. Macromonomers are also sometimes referred to as macromers. The use of the term 'macromer' is strongly discouraged. copolymerization https://goldbook.iupac.org//terms/view/C01336 end-group https://goldbook.iupac.org//terms/view/E02092 graft polymer https://goldbook.iupac.org//terms/view/G02679 homopolymerization https://goldbook.iupac.org//terms/view/H02855 monomer molecule https://goldbook.iupac.org//terms/view/M04019 monomer unit https://goldbook.iupac.org//terms/view/M04018 oligomer https://goldbook.iupac.org//terms/view/O04283 oligomer molecule https://goldbook.iupac.org//terms/view/O04286 PAC, 2004, 76, 889. 'Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)' on page 896 (https://doi.org/10.1351/pac200476040889) https://goldbook.iupac.org/terms/view/M03668/html https://goldbook.iupac.org/terms/view/M03668/json https://goldbook.iupac.org/terms/view/M03668/plain Citation: 'macromonomer' 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.M03668 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. 2026-06-19T22:20:41+00:00