Term: pseudo-copolymer https://doi.org/10.1351/goldbook.P04926 Definition: An irregular polymer, the molecules of which are derived from only one species of monomer but which display a variety of structural features more appropriate for description in copolymer terms. Note: Where appropriate, adjectives specifying the types of '@C01335@' may be applied to 'pseudo-@C01335@'. The term statistical pseudo-copolymer, for instance, may be used to describe an @I03257@ in the molecules of which the sequential distribution of configurational units obeys known statistical laws. Related Terms: 1) copolymer (http://doi.org/10.1351/goldbook.C01335). 2) irregular polymer (http://doi.org/10.1351/goldbook.I03257). 3) monomer (http://doi.org/10.1351/goldbook.M04017). Source: PAC, 1996, 68, 2287. 'Glossary of basic terms in polymer science (IUPAC Recommendations 1996)' on page 2300 (https://doi.org/10.1351/pac199668122287) Citation: 'pseudo-copolymer' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.P04926 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. 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.