{"term":{"id":"01186","title":"comb macromolecule","longtitle":"IUPAC Gold Book - comb macromolecule","doi":"10.1351\/goldbook.C01186","code":"C01186","status":"current","also defines":"<em>also defines<\/em>: brush macromolecule, regular comb macromolecule","definitions":[{"id":1,"text":"A macromolecule comprising a main chain with multiple trifunctional branch points from each of which a linear side-chain emanates.","notes":{"1":"If the subchains between the branch points of the main chain and the terminal subchains of the main chain are identical with respect to constitution and degree of polymerization, and the side chains are identical with respect to constitution and degree of polymerization the macromolecule is termed a regular comb macromolecule.","2":"If at least some of the branch points are of functionality greater than three, the macromolecule may be termed a brush macromolecule."},"links":[{"term":"branch points","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/B00728"},{"term":"constitution","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/C01282"},{"term":"degree of polymerization","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/D01569"},{"term":"macromolecule","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/M03667"},{"term":"main chain","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/M03694"},{"term":"side-chain","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/B00720"}],"sources":["PAC, 1996, 68, 2287. 'Glossary of basic terms in polymer science (IUPAC Recommendations 1996)' on page 2296 (https:\/\/doi.org\/10.1351\/pac199668122287)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/C01186\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/C01186\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/C01186\/plain"},"citation":"Citation: 'comb macromolecule' 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.C01186","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":"2026-06-21T08:28:57+00:00"}}