Term: polyacetylenes
https://doi.org/10.1351/goldbook.08882

Definition:
Polymers prepared from acetylene (ethyne), a substituted acetylene, or both in admixture by a polymerization involving one or more triple bonds (source-based polymer class name).

Notes:
1) Polymers of buta-1,3-diyne and its derivatives are a subclass of polyacetylenes referred to as polydiacetylenes.
2) Polymers prepared by polycondensations from diols, triols, diamines, dicarboxylic acids etc. containing triple bonds (e.g., from but-2-yne-1,4-diol) are excluded. Such polymers are classified as unsaturated polyesters, unsaturated polyamides, etc.
3) Although polyacetylenes opened the boom in organic electronics, they did not find commercial application due to insufficient stability under workload and in air. However, polymers of diarylacetylenes are stable and found applications as materials for gas separation membranes.

Example:  [image]

Example: Array

Image: polyacetylenes (https://goldbook.iupac.org/img/inline/08882.jpg) 

Source: PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 52 (https://doi.org/10.1515/pac-2020-0501)

Citation: 'polyacetylenes' 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.08882

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