| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Morsch, Suzanne
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Multi-Analytical Study of Damage to Marine Ballast Tank Coatings After Cyclic Corrosion Testing
- 2024High resolution analytical microscopy of damage progression within a polyester powder coating after cyclic corrosion testing
- 2023The effect of cross-linker structure on interfacial interactions, polymer dynamics and network composition in an epoxy-amine resincitations
- 2022The influence of mechanical grinding on the microstructure and corrosion behaviour of A356 aluminium alloyscitations
- 2022Molecular origins of Epoxy-Amine/Iron oxide interphase formationcitations
- 2021The influence of mechanical grinding on the microstructure and corrosion behaviour of A356 aluminium alloys
- 2021Local oxidation of the buried epoxy-amine/iron oxide interphasecitations
- 2021Local Oxidation of the Buried Epoxy-Amine / Iron Oxide Interphase
- 2020Spectroscopic insights into adhesion failure at the buried epoxy‐metal interphase using AFM‐IRcitations
- 2020Examining the early stages of thermal oxidative degradation in epoxy-amine resinscitations
- 2019Leaching from coatings pigmented with strontium aluminium polyphosphate inhibitor pigment- evidence for a cluster-percolation modelcitations
- 2019How pigment volume concentration (PVC) and particle connectivity affect leaching of corrosion inhibitive species from coatingscitations
- 2018The Unexpected Role of Carbonate Impurities in Polyphosphate Corrosion Inhibitioncitations
- 2017Molecularly Controlled Epoxy Network Nanostructurescitations
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article
The effect of cross-linker structure on interfacial interactions, polymer dynamics and network composition in an epoxy-amine resin
Abstract
<p>Understanding interactions at the polymer / metal oxide interface is central to improving the performance lifetime of corrosion resistant coatings, where network polymers commonly form via step growth mechanisms in the presence of pigments. Here we employ a holistic analytical approach encompassing ATR-FTIR, DSC and molecular dynamics simulations to consider how crosslinker structure affects adsorption and incorporation into the network, using a stoichiometric mixture of diglycidylether of bisphenol-A (DGEBA) with m-xylylenediamine (MXDA) cured in the presence of hematite (Fe<sub>2</sub>O<sub>3</sub>) and goethite (FeOOH) powders. We find that the rigid MXDA molecule has two distinct binding modes on both hematite and goethite, and that synergistic hydrogen bonding modes observed on goethite limit interconversion between the two. Moreover, we find that binding persists in fully cured composite samples, determining the levels of residual amine. In contrast to previously reported results using triethylenetetramine (TETA) crosslinkers, however, we find that the Tg of composite specimens is independent of added hematite and goethite volumes. Molecular dynamics simulations demonstrate this is due to electrostatic binding between the cationic Fe sites and electronegative heteroatoms in MXDA. This renders both amine functionalities unavailable for incorporation into the network and hence, unlike TETA, MXDA adsorption does not determine polymer dynamics.</p>