| 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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Szymoniak, Paulina
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (36/36 displayed)
- 2024Multiphoton lithography of interpenetrating polymer networks for tailored microstructure thermal and micromechanical propertiescitations
- 2024Structure and molecular mobility of phosphinine-based covalent organic frameworks – glass transition of amorphous COFscitations
- 2024Investigations of the adsorbed layer of polysulfone: Influence of the thickness of the adsorbed layer on the glass transition of thin filmscitations
- 2024The role of lignin as interfacial compatibilizer in designing lignocellulosic-polyester composite filmscitations
- 2024The influence of water released from particles in epoxy‐based nanocomposites
- 2024Effects of the charge density of nanopapers based on carboxymethylated cellulose nanofibrils investigated by complementary techniquescitations
- 2023Structure of plasma deposited acrylic acid‐allyl alcohol copolymerscitations
- 2023Interpenetrating networks with tuned thermal and mechanical properties
- 2023Growth kinetics of the adsorbed layer of poly(bisphenol A carbonate) and its effect on the glass transition behavior in thin filmscitations
- 2022Epoxy-Based Nanocomposites—What Can Be Learned from Dielectric and Calorimetric Investigations?citations
- 2022(Nano)Composite Materials—An Introduction
- 2022Dynamics ooof Composite Materialscitations
- 2021Energy dependent XPS measurements on thin films of a poly(vinyl methyl ether)/polystyrene blend concentration profile on a nanometer resolution to understand the behavior of nanofilmscitations
- 2021Calorimetric and Dielectric Investigations of Epoxy-Based Nanocomposites with Halloysite Nanotubes as Nanofillerscitations
- 2021Energy Dependent XPS Measurements on Thin Films of a Poly(vinyl methyl ether)/Polystyrene Blend in Dependence on Film Thickness – Concentration Profile on a Nanometer Resolution to Understand the Behavior of Nanofilmscitations
- 2021Electrospun nanocomposites fibers of polycarbonate and taurine modified boehmite nanoparticles - What can be learned from structural and thermal investigationscitations
- 2021Characterization of Polymer Nanocompositescitations
- 2021Spatial inhomogeneity, interfaces and complex vitrification kinetics in a network forming nanocompositecitations
- 2021Spatial inhomogeneity, interfaces and complex vitrification behavior of epoxy and corresponding nanocomposites by broadband dielectric spectroscopy and hyphenated calorimetry ; Räumliche Inhomogenität, Oberflächen und komplexes Verglasungsverhalten von Epoxidharzen und entsprechenden Nanokompositen mittels breitbandiger dielektrischer Spektroskopie und Hyphenated Kalorimetrie
- 2020Dataset and Jupyter worksheet interpreting the (results from) small- and wide-angle scattering data from a series of boehmite/epoxy nanocomposites. Accompanies the publication "Competition of nanoparticle-induced mobilization and immobilization effects on segmental dynamics of an epoxy-based nanocomposite"
- 2020Competition of nanoparticle-induced mobilization and immobilization effects on segmental dynamics of an epoxy-based nanocompositecitations
- 2020The effect of boehmite nanoparticles (γ‐AlOOH) on nanomechanical and thermomechanical properties correlated to crosslinking density of epoxy
- 2019Multiple Glassy Dynamics of an Asymmetric PVME/PS Blend Investigated by Broadband Dielectric and Specific Heat Spectroscopy
- 2019The effect of boehmite nanoparticles (gamma‐AlOOH) on nanomechanical and thermomechanical properties correlated to crosslinking density of epoxycitations
- 2019Effect of backbone rigidity on the glass transition of polymers of in-trinsic microporosity probed by fast scanning calorimetrycitations
- 2019The Effect of Backbone Rigidity on the Glass Transition of Polymers of Intrinsic Microporosity Probed by Fast Scanning Calorimetrycitations
- 2019Influence of interfaces on the crystallization behavior and the rigid amorphous phase of poly(l-lactide)-based nanocomposites with different layered doubled hydroxides as nanofillercitations
- 2019Confinement and localization effects revealed for thin films of the miscible blend Poly(vinyl methyl ether) / Polystyrene with a composition of 25/75 wt%citations
- 2019Molecular dynamics of the asymmetric blend PVME/PS revisited by broadband dielectric and specific heat spectroscopy: Evidence of multiple glassy dynamicscitations
- 2018Dynamics of nanoscopically confined PVME in thin films of an asymmetric PVME/PS blend
- 2018Competition of mobilization and immobilization effects of segmental dynamics in epoxy/Boehmite nanocomposites
- 2018Rigid amorphous fraction (RAF) in epoxy/Boehmite and epoxy/LDH nanocomposites
- 2018Dynamics of nanoscopically confined PVME in thin films of an asymmetric miscible PVME/PS blend
- 2018Molecular dynamics of an asymmetric PVME/PS Blend investigated by broadband dielectric and specific heat spectroscopy
- 2017Unexpected behavior of ultra-thin films of blends of polystyrene/poly(vinyl methyl ether) studied by specific heat spectroscopycitations
- 2017Decoupling of dynamic and thermal glass transition in thin films of a PVME/PS blendcitations
Places of action
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article
Competition of nanoparticle-induced mobilization and immobilization effects on segmental dynamics of an epoxy-based nanocomposite
Abstract
The complex effects of nanoparticles on a thermosetting material based on an anhydride cured DGEBA/Boehmite nanocomposite with different particle concentrations is considered. A combination of X-ray scattering, calorimetry, including fast scanning calorimetry as well as temperature modulated calorimetry and dielectric spectroscopy, was employed to study the structure, the vitrification kinetics and the molecular dynamics of the nanocomposites. For the first time in the literature for an epoxy-based composite a detailed analysis of the X-ray data was carried out. Moreover, the unfilled polymer was found to be intrinsically heterogeneous, showing regions with different crosslinking density, indicated by two separate dynamic glass transitions. The glass transition temperature decreases with increasing nanoparticle concentration, resulting from a change in the crosslinking density. Moreover, on the one hand, for nanocomposites the incorporation of nanofiller increased the number of mobile segments for low nanoparticle concentrations, due to the altered crosslinking density. On the other hand, for higher loading degrees the number of mobile segments decreased, resulting from the formation of an immobilized interphase (RAF). The simultaneous mobilization and immobilization of the segmental dynamics cannot be separated unambiguously. Taking the sample with highest number of mobile segments as reference state it was possible to estimate the amount of RAF.