| 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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Kaddami, Hamid
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Photoluminescence of Argan-Waste-Derived Carbon Nanodots Embedded in Polymer Matricescitations
- 2022Comprehensive preparation and catalytic activities of Co/TEMPO-cellulose nanocomposites: A promising green catalystcitations
- 2021Investigation on the Thermoforming of Pmsq-Hdpe for the Manufacture of a NACA Profile of Small Dimensionscitations
- 2021Investigation on the Thermoforming of Pmsq-Hdpe for the Manufacture of a NACA Profile of Small Dimensionscitations
- 2021Impact of cellulose nanocrystals reinforcement on molecular dynamics and dielectric properties of <scp>PCL</scp>‐based polyurethanecitations
- 2021Effect of the cooling temperature of a <scp>PET</scp> sheet on the crystallinity and mould removal time for thermoforming applicationscitations
- 2019Preparation and dielectric properties of poly(acrylonitrile- co -2,2,2-trifluoroethyl methacrylate) materials via radical emulsion copolymerizationcitations
- 2018Impact of TEMPO-oxidization strength on the properties of cellulose nanofibril reinforced polyvinyl acetate nanocompositescitations
- 2018Structure-Thermal Conductivity Tentative Correlation for Hybrid Aerogels Based on Nanofibrillated Cellulose-Mesoporous Silica Nanocompositecitations
- 2012Dielectric properties of copolymers based on cyano monomers and methyl α-acetoxyacrylatecitations
- 2011Synergism Effect of Montmorillonite and Cellulose Whiskers on the Mechanical and Barrier Properties of Natural Rubber Compositescitations
- 2010Monitoring morphology and properties of hybrid organic-inorganic materials from in situ polymerization of tetraethoxysilane in polyimide polymer : 1. effect of the coupling agent on the microstructure and interfacial interaction
- 2009Engineering Investigations on the Potentiality of the Thermoformability of HDPE Charged by Wood Flours in the Thermoforming Partcitations
- 2009Dielectric behaviour of copolymers based on 2,2,2-trifluoroethyl methacrylate and cyano co-monomerscitations
- 2006Monitoring morphology and properties of hybrid organicinorganic materials from in situ polymerization of tetraethoxysilane in polyimide polymer: 1. Effect of the coupling agent on the microstructure and interfacial interactioncitations
Places of action
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article
Monitoring morphology and properties of hybrid organicinorganic materials from in situ polymerization of tetraethoxysilane in polyimide polymer: 1. Effect of the coupling agent on the microstructure and interfacial interaction
Abstract
<jats:title>Abstract</jats:title><jats:p>Transmission electron microscopy (TEM), small angle X-ray (SAXS) and dynamical mechanical thermal analysis (DMTA) were used to characterize the morphology and thermo-mechanical properties of hybrid organic inorganic materials. These materials were based on polyimide (PI) and tetraethoxysilane (TEOS). Polyimide polymer is prepared from 4,4’-oxydianiline (ODA) 2,2-Bis(3- amino-4-hydroxyphenyl) hexafluoro-propane (6F-OHDA) pyromellitic dianhydride (PMDA) polyamic polymer. In one family of hybrid materials 3- isocyanatopropyltriethoxysilane (ICTS) is used as coupling agent in order to enhance the interfacial interaction between polyimide and silica. It was possible to modulate the morphology as well as the optical and thermo-mechanical properties of these hybrid materials depending on the formulation used. TEM and SAXS analysis indicated that silica domains on the nanoscale level are obtained when coupling agent is used in the formulation. Additionally the TEM and SAXS analysis indicated that miscibility of the organic and the inorganic phases on the molecular scale is obtained in the hybrid films when ICTS as coupling agent is added to the polyamic acid. These techniques show a fractal structure of the hybrid materials with coupling agent. This was confirmed with DMTA analysis which shows very high temperature relaxation (more than 450°C). From this result it could be derived that the addition of ICTS causes a morphological transformation from discrete particulate microstructure to fine interpenetrated or co-continuous phases. The intimate miscibility of the phases is accompanied at the same time by the amelioration of thermo-mechanical properties of the hybrid films.</jats:p>