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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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Martins, Pedro
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2025Insights into the electroactive impact of magnetic nanostructures in PVDF composites via small-angle neutron scatteringcitations
- 2024In-silico user study case: wearable feedback haptic device for rehabilitation
- 2023Photocurable Hybrid Materials with High Magnetodielectric Coupling
- 20233D‐Printed Carrageenan‐Based Nanocomposites for Force‐Sensing Applicationscitations
- 2022Ionic-triggered magnetoelectric coupling for magnetic sensing applicationscitations
- 20223D-printed carrageenan-based nanocomposites for sustainable resistive sensing devicescitations
- 2021Roadmap on Magnetoelectric Materials and Devicescitations
- 2021A Facile Nanoimpregnation Method for Preparing Paper‐Based Sensors and Actuatorscitations
- 2020Magnetic Proximity Sensor Based on Magnetoelectric Composites and Printed Coilscitations
- 2020Magnetoelectrics: Three Centuries of Research Heading Towards the 4.0 Industrial Revolutioncitations
- 2020Overview on thermoactive materials, simulations and applicationscitations
- 2020Enhanced Photocatalytic Activity of Au/TiO2 Nanoparticles against Ciprofloxacincitations
- 2020Enhanced photocatalytic activity of au/TiO2 nanoparticles against ciprofloxacincitations
- 2019Transparent Magnetoelectric Materials for Advanced Invisible Electronic Applicationscitations
- 2017Systematic Identification of Promoters for Methane Oxidation Catalysts Using Size- and Composition-Controlled Pd-Based Bimetallic Nanocrystals.
- 2015POxylated Polyurea Dendrimerscitations
- 2014Improving photocatalytic performance and recyclability by development of Er-doped and Er/Pr-codoped TiO2/Poly(vinylidene difluoride)-trifluoroethylene composite membranescitations
- 2012On the origin of the electroactive poly(vinylidene fluoride) β-phase nucleation by ferrite nanoparticles via surface electrostatic interactionscitations
- 2007Effect of polymer strengtheners on the local environment of biocompatible glass as probed by fluorescencecitations
Places of action
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article
On the origin of the electroactive poly(vinylidene fluoride) β-phase nucleation by ferrite nanoparticles via surface electrostatic interactions
Abstract
Flexible multiferroic 0-3 composite films, comprising NiFe2O4 and CoFe2O4 ferrite nanoparticles in a polyvinylidene fluoride (PVDF) matrix, have been prepared by solvent casting and melt crystallization to investigate the polymer β-phase nucleation mechanism. Infrared spectroscopy confirms the nucleation of the polymeric electroactive β-phase with the addition of both ferrites, although the loading of ferrite 10 nanoparticles needed to obtain the highest amount of β-phase was found to be one order of magnitude higher in the NiFe2O4/PVDF nanocomposites. Transmission electron microscopy imaging and thermogravimetric analyses indicate the formation of an interface in the nanocomposites with the β-phase nucleation. It is shown that the essential factor for the nucleation of the β-phase in the ferrites/PVDF nanocomposites is the static electric interaction between the magnetic particles with a negative zeta 15 potential and the CH2 groups having a positive charge density. ; We acknowledge the Foundation for Science and Technology (FCT) for financial support through PTDC/CTM/69316/2006 and NANO/NMed-SD/0156/2007 projects. The authors also thank support from the COST Action MP1003, 2010 'European Scientific Network for Artificial Muscles'. P.M. and C.M.C. thank the support of the FCT (grants SFRH/BD/45265/2008 and SFRH/BD/68499/2010, respectively). M.B. thanks the FCT for support under the "Compromisso com a Ciencia" program.