120243 20240319081026.0 doi 10.1038/s41467-022-34631-9 sideral 131195 ART-2022-131195 eng Meloni, M. Explosive percolation yields highly-conductive polymer nanocomposites 2022 Access copy available to the general public Unrestricted Explosive percolation is an experimentally-elusive phenomenon where network connectivity coincides with onset of an additional modification of the system; materials with correlated localisation of percolating particles and emergent conductive paths can realise sharp transitions and high conductivities characteristic of the explosively-grown network. Nanocomposites present a structurally- and chemically-varied playground to realise explosive percolation in practically-applicable systems but this is yet to be exploited by design. Herein, we demonstrate composites of graphene oxide and synthetic polymer latex which form segregated networks, leading to low percolation threshold and localisation of conductive pathways. In situ reduction of the graphene oxide at temperatures of <150 °C drives chemical modification of the polymer matrix to produce species with phenolic groups, which are known crosslinking agents. This leads to conductivities exceeding those of dense-packed networks of reduced graphene oxide, illustrating the potential of explosive percolation by design to realise low-loading composites with dramatically-enhanced electrical transport properties. info:eu-repo/grantAgreement/ES/DGA/T03-20R info:eu-repo/grantAgreement/EC/H2020/642742/EU/Graphene-based nanomaterials for touchscreen technologies: Comprehension, Commerce and Communication/Enabling Excellence This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 642742-Enabling Excellence info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2019-104272RB-C51/AEI/10.13039/501100011033 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 16.6 2022 MULTIDISCIPLINARY SCIENCES 6 / 73 = 0.082 2022 Q1 T1 5.116 2022 Biochemistry, Genetics and Molecular Biology (miscellaneous) 2022 Q1 Physics and Astronomy (miscellaneous) 2022 Q1 Chemistry (miscellaneous) 2022 Q1 24.9 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Large, M. J. González Domínguez, J. M. Victor-Román, S. Fratta, G. Istif, E. Tomes, O. Salvage, J. P. Ewels, C. P. Peláez-Fernandez, M. Universidad de Zaragoza (orcid)0000-0001-5079-621X Arenal, R. (orcid)0000-0002-2071-9093 Benito, A. Maser, W. K. King, A. A. K. Ajayan, P. M. Ogilvie, S. P. Dalton, A. B. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 13 (2022), 6872[9 pp.] Nature communications 2041-1723 2060756 http://zaguan.unizar.es/record/120243/files/texto_completo.pdf Versión publicada 2546137 http://zaguan.unizar.es/record/120243/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:120243 articulos driver 2024-03-18-16:43:28 ARTICLE