Term: poly[3,4-(ethylenedioxy)thiophene]
https://doi.org/10.1351/goldbook.08891

Definition:
Polymer prepared from 3,4-(ethylenedioxy)thiophene (source-based polymer name). [image]

Notes:
1) PEDOT is an intrinsically conducting polythiophene class polymer that is mostly used as a blend with sulfonated polystyrene (PEDOT-PSS), which is produced by oxidative polymerization of 3,4-[ethylene-1,2-bis(oxy)]thiophene (traditional name 3,4-(ethylenedioxy)thiophene, therefore abbreviated as EDOT) in an aqueous solution of partly neutralized sulfonated polystyrene.
2) The PEDOT-PSS is stable in ambient environment, water-dispersible thus processable from aqueous systems and considered as a non-toxic material for the flexible and printed organic electronics and photovoltaics. PEDOT-PSS belongs among the most often used materials for organic as well as organic/inorganic electronic and photovoltaic devices, for antistatic and electrochromic coatings and films, and also exhibits the thermoelectric effect.

Image: poly[3,4-{ethylenedioxy}thiophene] (https://goldbook.iupac.org/img/inline/08891.jpg) 

Source: PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 57 (https://doi.org/10.1515/pac-2020-0501)

Citation: 'poly[3,4-(ethylenedioxy)thiophene]' 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.08891

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