{"term":{"id":"15267","title":"polyamide","longtitle":"IUPAC Gold Book - polyamide","doi":"10.1351\/goldbook.15267","code":"15267","status":"current","definitions":[{"id":1,"text":"Polymer composed of macromolecules containing carboxamide groups as linkages in the backbone: \\[\\ce{-NR-CO\\bond{-}}\\] where \\(\\ce{R}\\) is hydrogen, alkyl, aryl, or heteroaryl.\n\n","notes":{"1":"A polyamide containing, besides \\(\\ce{-NR-CO\\bond{-}}\\) linkages, exclusively aliphatic constitutional units is an aliphatic polyamide; examples are:  Trivial names of the type: polyamide \\(m\\) and polyamide \\(m,n\\) are only used for aliphatic polyamides. Polyamide \\(m\\) stands for a homopolymeric polyamide derived from an amino acid or a lactam comprising \\(m\\) carbon atoms; polyamide \\(m,n\\) stands for a copolymeric polyamide derived from an alkane-1,m-diamine containing \\(m\\) carbon atoms and an alkanedioic acid containing \\(n\\) carbon atoms (including those in \\(\\ce{CO}\\) groups).","2":"A polyamide containing, besides \\(\\ce{-NR-CO\\bond{-}}\\) linkages, exclusively aromatic constitutional units is an aromatic polyamide commonly referred to as an aramide; example is: ","3":"A polyamide containing pendent carboxy groups is a polyamide acid commonly referred to as a polyamic acid.","4":"A polymer containing only pendent amide groups is excluded, e.g., polyacrylamide."},"links":[{"term":"polyamide acid","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/15268"}],"sources":["PAC, 2009, 81, 1131. 'Glossary of class names of polymers based on chemical structure and molecular architecture (IUPAC Recommendations 2009)' on page 1148 (https:\/\/doi.org\/10.1351\/PAC-REC-08-01-30)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/15267\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/15267\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/15267\/plain"},"citation":"Citation: 'polyamide' 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.15267","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":"2026-04-20T16:03:14+00:00"}}