Term: polydiacetylenes
https://doi.org/10.1351/goldbook.08889

Definition:
Polymer prepared from buta-1,3-diyne (diacetylene) or a substituted buta-1,3-diyne or both in admixture (source-based polymer class name).

Notes:
1) General formula of a regular polydiacetylene that is prepared by the photo-induced topochemical polymerization of a crystalline 1,3-diyne is as follows: [image] where \(\ce{R^{1}}\) and \(\ce{R^{2}}\) are each hydrogen or an alkyl, aryl or heteroaryl group.
2) Polydiacetylenes are a subclass of conjugated polymers and of polyacetylenes.

Link: 
Related Term: conjugated polymers (http://doi.org/10.1351/goldbook.08785).
Related Term: polyacetylenes (http://doi.org/10.1351/goldbook.08882).

Image: polydiacetylene (https://goldbook.iupac.org/img/inline/08889.jpg) 

Source: PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 56 (https://doi.org/10.1515/pac-2020-0501)

Citation: 'polydiacetylenes' 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.08889

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