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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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Raihane, Mustapha
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Molecular dynamics of poly(ε‐caprolactone)/beidellite organoclay bionanocomposites obtained by in‐situ polymerization highlighted by dielectric relaxation spectroscopy
- 2023Synthesis and Characterization of Core–Double-Shell-Structured PVDF-grafted-BaTiO3/P(VDF-co-HFP) Nanocomposite Filmscitations
- 2023Synthesis and Characterization of Core-Double-Shell-Structured PVDF-grafted BaTiO3/P(VDF-co-HFP) Nanocomposite Filmscitations
- 2023Exploiting poly(ε-caprolactone) grafted from hydrohydroxymethylated sunflower oil as biodegradable coating material of water-soluble fertilizerscitations
- 2023Dielectric Characterization of Core-Shell Structured Poly(vinylidene fluoride)-grafted-BaTiO3 Nanocompositescitations
- 2021Singling Out the Role of Molecular Weight in the Crystallization Kinetics of Polyester/Clay Bionanocomposites Obtained by In Situ Step Growth Polycondensationcitations
- 2020The relationship of structure, thermal and water vapor permeability barrier properties of poly(butylene succinate)/organomodified beidellite clay bionanocomposites prepared by <i>in situ</i> polycondensationcitations
- 2020Recent progress on core-shell structured BaTiO3@polymer/fluorinated polymers nanocomposites for high energy storage: Synthesis, dielectric properties and applicationscitations
- 2020Evaluation of core–shell poly(vinylidene fluoride)-grafted-Barium titanate (PVDF-g-BaTiO3) nanocomposites as a cathode binder in batteriescitations
- 2019Preparation and dielectric properties of poly(acrylonitrile- co -2,2,2-trifluoroethyl methacrylate) materials via radical emulsion copolymerizationcitations
- 2017Highly thermostable and crystalline poly(butylene adipate) bionanocomposites prepared by in situ polycondensation with organically modified Moroccan Beidellite claycitations
- 2017Dynamic Resolution of Ion Transfer in Electrochemically Reduced Graphene Oxides Revealed by Electrogravimetric Impedancecitations
- 2016Complex Dynamics of a Fluorinated Vinylidene Cyanide Copolymer Highlighted by Dielectric Relaxation Spectroscopycitations
- 2014Unique Difference in Transition Temperature of Two Similar Fluorinated Side Chain Polymers Forming Hexatic Smectic Phase: Poly{2-(perfluorooctyl)ethyl acrylate} and Poly{2- (perfluorooctyl)ethyl vinyl ether}citations
- 2013Structural analysis and surface wettability of a novel alternated vinylidene cyanide with fluorinated vinyl ether copolymercitations
- 2013Radical Copolymerization of Acrylonitrile with 2,2,2-Trifluoroethyl Acrylate for Dielectric Materials: Structure and Characterizationcitations
- 2012Dielectric properties of copolymers based on cyano monomers and methyl α-acetoxyacrylatecitations
- 2009Dielectric behaviour of copolymers based on 2,2,2-trifluoroethyl methacrylate and cyano co-monomerscitations
- 2006Radical copolymerization of 2,2,2-trifluoroethyl methacrylate with cyano compounds for dielectric materials: Synthesis and characterizationcitations
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article
Molecular dynamics of poly(ε‐caprolactone)/beidellite organoclay bionanocomposites obtained by in‐situ polymerization highlighted by dielectric relaxation spectroscopy
Abstract
<jats:title>Abstract</jats:title><jats:sec><jats:label/><jats:p>Nanocomposites of poly(ε‐caprolactone) (PCL) reinforced by an organomodified beidellite (BDT) with 3% of cetyltrimethylammonium bromide (CTAB) (labeled PCL/3CTA‐BDT) were prepared by varying the content of filler (1, 2, 3, and 5 wt%). Their molecular dynamics were investigated by broadband dielectric spectroscopy at temperatures ranging from 0 to 40°C and a frequency window from 10<jats:sup>−1</jats:sup> to 10<jats:sup>6</jats:sup> Hz. Three relaxation processes were detected for unfilled PCL: electrode polarization (EP), the Maxwell–Wagner–Sillars (MWS) polarization, and the α‐relaxation. The incorporation of the filler induced the emergence of a fourth process at high frequency of dipolar origin labeled as interfacial polarization (IP). Fitting the data with the Havriliak–Negami model as well as a study of the relaxation time variation with temperature demonstrated the noncooperative nature of the IP process. Activation energy and dielectric strength values demonstrated that the PCL/3CTA‐BDT with 3 wt% of filler showed a higher quality of dispersion and better interfacial features compared to those with other filler contents (2 and 5 wt%). This work highlights the challenges of dielectric green nanocomposites used for capacitors (storage energy) and cable/wire insulation.</jats:p></jats:sec><jats:sec><jats:title>Highlights</jats:title><jats:p><jats:list list-type="bullet"> <jats:list-item><jats:p>The various samples were analyzed using broadband dielectric spectroscopy.</jats:p></jats:list-item> <jats:list-item><jats:p>Relaxation processes in pure matrix: EP, MWS, and α‐relaxation.</jats:p></jats:list-item> <jats:list-item><jats:p>Incorporation of the filler induced the emergence of interfacial polarization (IP).</jats:p></jats:list-item> <jats:list-item><jats:p>Noncooperative behavior of the IP process.</jats:p></jats:list-item> <jats:list-item><jats:p>3 wt% loading showed a higher quality of dispersion and interfacial features.</jats:p></jats:list-item> </jats:list></jats:p></jats:sec>