Dielectric properties of a semicrystalline supramolecular polymer

Preda, Ioana (School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Hohl, Diana Kay (Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland) ; Weder, Christoph (Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland)

Supramolecular polymers (SPs) are assemblies of monomers that bind to another through non-covalent interactions. The reversible nature of these interactions permits one to temporarily disassemble SPs “on command” by applying an appropriate stimulus, which is advantageous for processing and recycling and allows creating stimuli-responsive materials. Here we report on the dielectric properties of an SP network assembled from monomers based on polypropylene oxide (PPO) cores, functionalized with UPy groups. In this work, we measured the DC breakdown strength, dielectric relaxation and electrical conductivity and show that the dielectric properties are similar to those of silicones or silicon-based adhesives. However, the material is reprocessable, thus has a potential for medium voltage applications, within the context of a circular economy.

Note: Due to the COVID-19 outbreak, the IEEE 2020 International Conference on Dielectrics in Valencia was cancelled. The proceedings of the online conference are however published according to the original schedule.

Conference Type:
published full paper
Ingénierie et Architecture
Energy - Institut de recherche appliquée en systèmes énergétiques
Valencia, Spain, 6th-31st July 2020
Valencia, Spain
6th-31st July 2020
4 p.
Published in:
Proceedings of IEEE 2020 International Conference on Dielectrics, 6th-31st July 2020, Valencia, Spain
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 Record created 2020-11-03, last modified 2020-12-16

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