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Article

Coupling the Microscopic Healing Behaviour of Coatings to the Thermoreversible Diels-Alder Network Formation

1
Department of Materials and Chemistry, Physical Chemistry and Polymer Science, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
2
Department of Mechanical Engineering, Robotics and Multibody Mechanics, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(1), 13; https://doi.org/10.3390/coatings9010013
Received: 25 November 2018 / Revised: 17 December 2018 / Accepted: 22 December 2018 / Published: 26 December 2018
(This article belongs to the Special Issue Progress in Self-Healing Coatings)
While thermally reversible polymer network coatings based on the Diels-Alder reaction are widely studied, the mechanisms responsible for the heating-mediated healing of damage is still not well understood. The combination of microscopic evaluation techniques and fundamental insights for the thermoreversible network formation in the bulk and coating shed light on the mechanisms behind the damage healing events. The thermomechanical properties of thermoset and elastomer coatings, crosslinked by the furan-maleimide Diels-Alder cycloaddition reaction, were studied in bulk and compared to the thermal behaviour applied as coatings onto aluminium substrates. The damage sealing of thermoset (Tg = 79 °C) and elastomer (Tg = −49 °C) coatings were studied using nano-lithography and atomic force microscopy (AFM). The sealing event is studied and modelled at multiple temperatures and correlated to the changes in the network structure and corresponding thermomechanical properties. View Full-Text
Keywords: Diels-Alder; reversible polymer network; dynamic covalent; self-healing; modelling Diels-Alder; reversible polymer network; dynamic covalent; self-healing; modelling
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MDPI and ACS Style

Brancart, J.; Verhelle, R.; Mangialetto, J.; Van Assche, G. Coupling the Microscopic Healing Behaviour of Coatings to the Thermoreversible Diels-Alder Network Formation. Coatings 2019, 9, 13. https://doi.org/10.3390/coatings9010013

AMA Style

Brancart J, Verhelle R, Mangialetto J, Van Assche G. Coupling the Microscopic Healing Behaviour of Coatings to the Thermoreversible Diels-Alder Network Formation. Coatings. 2019; 9(1):13. https://doi.org/10.3390/coatings9010013

Chicago/Turabian Style

Brancart, Joost; Verhelle, Robrecht; Mangialetto, Jessica; Van Assche, Guy. 2019. "Coupling the Microscopic Healing Behaviour of Coatings to the Thermoreversible Diels-Alder Network Formation" Coatings 9, no. 1: 13. https://doi.org/10.3390/coatings9010013

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