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Lookup NU author(s): Bassam Aljohani, Dr Ama Asiedu-AsanteORCiD, Dr Adriana Sierra RomeroORCiD, Professor Katarina NovakovicORCiD, Professor Volker PickertORCiD, Professor Mark GeogheganORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2026 The Author(s). Advanced Electronic Materials published by Wiley-VCH GmbH.An electrically conducting reversible adhesive with conductivity up to 2.9 × 105 S m−1 and lap shear strength of up to 1.5 MPa is presented. The reversibility of the glue enables debonding of surfaces on exposure to alkaline media. The adhesive comprises polyelectrolyte-stabilized nanoparticles synthesized by emulsion polymerization and silver nanoparticles as conductive filler. The conductivity of these formulations is comparable to, or exceeds, that of commercially available conductive adhesives, while their mechanical performance is consistent with typical water-based adhesive systems. Adhesion is reversed by immersing the bonded joints at pH 14. By heating to 85°C and stirring the solution (500 rpm), the debonding time can be reduced to ∼30 min or less. Separation can also be achieved at 85°C at pH 7. Short debonding times can also be achieved at room temperature by using acetone, a recognized green solvent. This electronically conducting reversible adhesive therefore presents a great opportunity to improve the reuse or recycling of electronic components.
Author(s): Aljohani BA, Asiedu-Asante AB, Sierra-Romero A, Novakovic K, Pickert V, Geoghegan M
Publication type: Article
Publication status: Published
Journal: Advanced Electronic Materials
Year: 2026
Pages: epub ahead of print
Online publication date: 14/05/2026
Acceptance date: 10/04/2026
Date deposited: 26/05/2026
ISSN (print): 2199-160X
ISSN (electronic): 2199-160X
Publisher: John Wiley and Sons Inc
URL: https://doi.org/10.1002/aelm.202500617
DOI: 10.1002/aelm.202500617
Data Access Statement: The data that support the findings of this study are available from the corresponding author upon reasonable request.
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