| 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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Carroll, Bobby
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Influence of the Graft Length on Nanocomposite Structure and Interfacial Dynamicscitations
- 2023Influence of the Graft Length on Nanocomposite Structure and Interfacial Dynamicscitations
- 2023How Tuning Interfaces Impacts the Dynamics and Structure of Polymer Nanocomposites Simultaneouslycitations
- 2022Tuning the Properties of Nanocomposites by Trapping Them in Deep Metastable Statescitations
- 2021Direct Structural Evidence for Interfacial Gradients in Asymmetric Polymer Nanocomposite Blendscitations
- 2020Strong Reduction in Amplitude of the Interfacial Segmental Dynamics in Polymer Nanocompositescitations
- 2020Strong Reduction in Amplitude of the Interfacial Segmental Dynamics in Polymer Nanocompositescitations
- 2020Addition of Short Polymer Chains Mechanically Reinforces Glassy Poly(2-vinylpyridine)-Silica Nanoparticle Nanocompositescitations
- 2020Addition of Short Polymer Chains Mechanically Reinforces Glassy Poly(2-vinylpyridine)–Silica Nanoparticle Nanocompositescitations
- 2019Understanding the Static Interfacial Polymer Layer by Exploring the Dispersion States of Nanocompositescitations
- 2019Understanding the Static Interfacial Polymer Layer by Exploring the Dispersion States of Nanocompositescitations
- 2018Enhancing the Mechanical Properties of Glassy Nanocomposites by Tuning Polymer Molecular Weightcitations
- 2018Enhancing the Mechanical Properties of Glassy Nanocomposites by Tuning Polymer Molecular Weightcitations
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article
Strong Reduction in Amplitude of the Interfacial Segmental Dynamics in Polymer Nanocomposites
Abstract
Despite the wide use of polymer nanocomposites (PNCs) in various applications, our understanding of the microscopic parameters controlling their macroscopic properties remains limited. In this study, we examine the dielectric strength of segmental dynamics, Delta epsilon(IL)(T) in the interfacial polymer layer surrounding the nanoparticles in PNCs. The presented analysis reveals a significant drop in Delta epsilon(IL)(T) and its anomalous temperature dependence in the polymer layer adsorbed to nanoparticles. The drop in Delta epsilon(IL)(T) was observed in all samples regardless of whether segmental relaxation time in the interfacial layer was slower or faster than in the bulk polymer, excluding interpretation of the "dead" layer. We ascribe the observed decrease in the dielectric strength to the restricted amplitude of segmental relaxation in the interfacial/adsorbed layer. Our results provide a new perspective on discussion of dynamics in the interfacial layer in PNCs and thin polymer films, demonstrating that not only segmental relaxation time but also its amplitude can be strongly affected by the interface.