Examining the Role of Aryldiazonium Salts in Surface Electroinitiated Polymerization.

Autor: Stanfield MK; Carbon Nexus, Institute for Frontier Materials, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia., Dilger M; Unité Matériaux et Transformations, University Lille, CNRS, INRAE, Centrale Lille, UMR 8207-UMET, F-59000 Lille, France., Hayne DJ; Carbon Nexus, Institute for Frontier Materials, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia., Emonson NS; Carbon Nexus, Institute for Frontier Materials, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia., Barlow A; Materials Characterisation and Fabrication Platform (MCFP), Department of Chemical Engineering, University of Melbourne, Parkville, VIC 3010, Australia., Boase NRB; Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia.; School of Physics and Chemistry, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia., Gahan LR; School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia., Krenske EH; School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia., Pinson J; Université de Paris, ITODYS, CNRS, F-75013 Paris, France., Eyckens DJ; Commonwealth Scientific and Industrial Research Organization (CSIRO), Manufacturing, Clayton, VIC 3168, Australia., Henderson LC; Carbon Nexus, Institute for Frontier Materials, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia.
Jazyk: angličtina
Zdroj: Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2022 Apr 26; Vol. 38 (16), pp. 4979-4995. Date of Electronic Publication: 2022 Apr 13.
DOI: 10.1021/acs.langmuir.2c00396
Abstrakt: Historically, the irreversible reduction of aryldiazonium salts has provided a reliable method to modify surfaces, demonstrating a catalogue of suitable diazonium salts for targeted applications. This work expands the knowledge of diazonium salt chemistry to participate in surface electroinitiated emulsion polymerization (SEEP). The influence of concentration, electronic effects, and steric hindrance/regiochemistry of the diazonium salt initiator on the production of polymeric films is examined. The objective of this work is to determine if a polymer film can be tailored, controlling the thickness, density, and surface homogeneity using specific diazonium chemistry. The data presented herein demonstrate a significant difference in polymer films that can be achieved when selecting a variety of diazonium salts and vinylic monomers. A clear trend aligns with the electron-rich diazonium salt substitution providing the thickest films (up to 70.9 ± 17.8 nm) with increasing diazonium concentration and electron-withdrawing substitution achieving optimal homogeneity for the surface of the film at a 5 mM diazonium concentration.
Databáze: MEDLINE