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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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Cavalli, Gabriel
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Topics
Publications (7/7 displayed)
- 2021Novel Crosslinking System for Poly-Chloroprene Rubber to Enable Recyclability and Introduce Self-Healingcitations
- 2019Examining the Influence of Anion Nucleophilicity on the Polymerisation Initiation Mechanism of Phenyl Glycidyl Ethercitations
- 2019On the use of benzaldehyde to improve the storage stability of one-pot, epoxy ionic liquid formulationscitations
- 2018Examining the influence of organophosphorous flame retardants on the thermal behaviour of aromatic polybenzoxazinescitations
- 2016Improving the hydrolytic stability of aryl cyanate esters by examining the effects of extreme environments on polycyanurate copolymerscitations
- 2016Investigation of structure property relationships in liquid processible, solvent free, thermally stable bismaleimide-triazine (BT) resinscitations
- 2012Quantifying the effect of polymer blending through molecular modelling of cyanurate polymerscitations
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article
On the use of benzaldehyde to improve the storage stability of one-pot, epoxy ionic liquid formulations
Abstract
A series of adducts were prepared based on the reaction of 1-ethyl-3-methylimidazolium acetate and benzaldehyde in various stoichiometries (from equimolar reaction to benzaldehyde in 10-fold excess) and the resulting adducts were characterized using nuclear magnetic resonance spectroscopy ( 1 H, 13 C, DEPT, and HQSC experiments). Differential scanning calorimetry was used to examine the initiating behaviour of the adducts towards mono- and di-functional epoxy resins and the data were used to determine kinetic parameters for the polymerization. The lower temperature peak, due to carbene formation, is sensitive to adduct concentration; the residual ionic liquid in the adduct mixture contributes towards the initiation of the curing reaction. When a monofunctional epoxy and the 1:1 adduct was subjected to a 2-week period of storage at room temperature and sub-zero temperatures in the freezer, the profiles of the thermograms for the frozen samples do not change considerably over the storage period and the formulation retains a light yellow colour (rather than the viscous, dark red appearance of the formulation stored at room temperature).