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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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Smith, Paul A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2018Microwave filters based on novel dielectric split-ring resonators with high unloaded quality factorscitations
- 2015Late-stage fatigue damage in a 3D orthogonal non-crimp woven composite: an experimental and numerical studycitations
- 2014Developing toughened aromatic polybenzoxazines using thermoplastic oligomers and telechelics, part 1:Preparation and characterization of the functionalized oligomerscitations
- 2014Developing toughened aromatic polybenzoxazines using thermoplastic oligomers and telechelics, part 1citations
- 2014Toughening mechanisms in aromatic polybenzoxazines using thermoplastic oligomers and telechelicscitations
- 2013Structure and microwave dielectric properties of low firing Bi2Te2W3O16 ceramicscitations
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article
Developing toughened aromatic polybenzoxazines using thermoplastic oligomers and telechelics, part 1
Abstract
<p>The preparation and characterization of three families of thermoplastic oligomers (M<sub>n</sub>‰=‰2918-13263 g mol<sup>-1</sup>) based on polyarylsulfone (PSU) differing in both molecular weight and terminal functionality and one series of polyarylethersulfone (PES) of different molecular weights is reported. Infrared and nuclear magnetic resonance spectroscopy data support the formation of both the hydroxyl terminated oligomers and conversion (67-89% depending on molecular weight) to the telechelic PSU oligomer bearing reactive benzoxazine groups. Differential scanning calorimetry reveals that the onset of homopolymerization in the telechelic PSU oligomer occurs at around 100°C (peak maximum 125°C at 10 K/min) and rescans show values of the glass transition (for the homopolymers) ranging from 124 to 167°C depending on molecular weight. The influence on the oligomer backbone and terminal functionality is examined using thermal analysis.</p>