693.932 PEOPLE
| 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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Schönhals, Andreas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (46/46 displayed)
- 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
- 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
- 2023Growth kinetics of the adsorbed layer of poly(bisphenol A carbonate) and its effect on the glass transition behavior in thin filmscitations
- 2022Nano-MnO2/xanthan gum composite films for NO2 gas sensingcitations
- 2022Molecular dynamics of alkyl benzoate liquid crystals in the bulk state and in the surface layer of their composites with oxide nanopowderscitations
- 2022Epoxy-Based Nanocomposites—What Can Be Learned from Dielectric and Calorimetric Investigations?citations
- 2022(Nano)Composite Materials—An Introduction
- 2022Dynamics ooof Composite Materialscitations
- 2022Multiple glassy dynamics of a homologous series of triphenylene-based columnar liquid crystals – A study by broadband dielectric spectroscopy and advanced calorimetrycitations
- 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
- 2021Do Interfacial Layers in Thin Films Act as an Independent Layer Within Thin Films?citations
- 2021Characterization of Polymer Nanocompositescitations
- 2021Spatial inhomogeneity, interfaces and complex vitrification kinetics in a network forming nanocompositecitations
- 2020Complex molecular dynamics of a symmetric model discotic liquid crystal revealed by broadband dielectric, thermal and neutron spectroscopycitations
- 2020Competition of nanoparticle-induced mobilization and immobilization effects on segmental dynamics of an epoxy-based nanocompositecitations
- 2019Effect of backbone rigidity on the glass transition of polymers of in-trinsic microporosity probed by fast scanning calorimetrycitations
- 2019Cu nanoparticles constrain segmental dynamics of crosslinked polyethers: a trade -off between non-fouling and antibacterial propertiescitations
- 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
- 2018The scaling of the molecular dynamics of liquid crystals as revealed by broadband dielectric, specific heat, and neutron spectroscopycitations
- 2017Hyperbranched poly(amidoamine)/kaolinite nanocomposites: Structure and charge carrier dynamicscitations
- 2017Molecular mobility and gas transport properties of nanocomposites based on PIM-1 and polyhedral oligomeric phenethyl-silsesquioxanes (POSS)citations
- 2017Unexpected behavior of ultra-thin films of blends of polystyrene/poly(vinyl methyl ether) studied by specific heat spectroscopycitations
- 2017Calorimetric evidence for a mobile surface layer in ultrathin polymeric films: poly(2-vinyl pyridine)
- 2017Decoupling of dynamic and thermal glass transition in thin films of a PVME/PS blendcitations
- 2016Reaction of CO2 gas with (radicals in) plasma-polymerized acrylic acid (and formation of COOH-rich polymer layers)citations
- 2016Dielectric investigations of nanocomposites based on matrimid and polyhedral oligomeric phenethyl-silsesquioxanes (POSS)citations
- 2015Carbon-based nanofillers/poly(butylene terephthalate): thermal, dielectric, electrical and rheological propertiescitations
- 2015Structure-property relationships of hyperbranched polymer/kaolinite nanocompositescitations
- 2015High-resolution dielectric study reveals pore-size-dependent orientational order of a discotic liquid crystal confined in tubular nanoporescitations
- 2015Structure-property relationships of nanocomposites based on polylactide and MgAl layered double hydroxidescitations
- 2014Influence of nanoscale confinement on the molecular mobility of ibuprofencitations
- 2014Influence of nanoscale confinement on the molecular mobility of ibuprofencitations
- 2014Comparison of thermal and dielectric spectroscopy for nanocomposites based on polypropylene and layered double hydroxide - proof of interfacescitations
- 2014Thermotropic orientational order of discotic liquid crystals in nanochannels: an optical polarimetry study and a Landau-de Gennes analysiscitations
- 2014Thermotropic orientational order of discotic liquid crystals in nanochannels: an optical polarimetry study and a Landau-de Gennes analysiscitations
- 2012Arrangement of layered double hydroxide in a polyethylene matrix studied by a combination of complementary methodscitations
- 2011Structure - property relationships of nanocomposites based on polypropylene and layered double hydroxidescitations
- 2005Dielectric Study of Molecular Mobility in Poly(propylene-graft-maleic anhydride)/Clay Nanocompositescitations
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.