Electroactive Polymers for Next-Generation Energy Storage and Conductive Composite Materials: A Focus on Pani and Pedot-Based Conjugated Polymers

Date

2024-6-7

Author

Cevher, Duygu

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Since the discovery of conjugated polymers (CPs), they have attracted attention owing to their unique properties and potential applications. Polyaniline and poly(3,4-ethylenedioxythiophene) are two of the most studied polymers owing to a combination of unique properties such as low monomer price, ease of synthesis, and redox reversibility. The synthesis of PANI under various conditions and the use of various synthesis methods to achieve high conductivity have attracted great interest in microwave absorption due to their application potential in conductive composites. This thesis encapsulates the efforts undertaken to tailor PANI conductivity by manipulating reaction parameters and synthetic pathways, specifically focusing on incorporating PANI into epoxy matrices or applying it as a coating on glass fibers for manufacturing conductive composites. Positioned between conventional capacitors and batteries, supercapacitors have emerged as promising energy storage devices. CPs are known as promising materials for supercapacitor applications due to their unique electronic and structural properties. The synthesis of CPs, specifically focusing on PEDOT-based materials, has gained significant prominence in supercapacitor technology due to their remarkable combination of electrical conductivity, electrochemical stability, and facile synthesis. This thesis focuses on the efforts in tailoring PEDOT-based CPs for supercapacitor applications, emphasizing the design of both electrodes and electrolytes. By manipulating synthesis parameters such as chemical structure, polymerization methods and morphology control, PEDOT-based electrode materials were proposed for obtaining higher charge storage capabilities. In summary, this thesis covers the development of CP-based polymers and composites for innovative systems, with the potential to contribute to microwave absorption and energy storage solutions.

Subject Keywords

Conjugated polymers, Conductivity, Electrochemistry, Energy storage, Supercapacitor

URI

https://hdl.handle.net/11511/110102

Collections

Graduate School of Natural and Applied Sciences, Thesis