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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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Mayer, Joachim
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2024The effect of Laves phases and nano-precipitates on the electrochemical corrosion resistance of Mg-Al-Ca alloys under alkaline conditionscitations
- 2024Natural and artificial aging behaviour of Al-Cu-Mg-Ag-Ti-B (A205) alloy processed by laser powder bed fusion: Strengthening mechanisms and failure analysiscitations
- 2023Improved Route to Linear Triblock Copolymers by Coupling with Glycidyl Ether-Activated Poly(ethylene oxide) Chainscitations
- 2023Three-dimensional printing of silica glass with sub-micrometer resolutioncitations
- 2023Three-dimensional printing of silica glass with sub-micrometer resolutioncitations
- 2023Microstructure stability and self-diffusion in the equiatomic HfScTiZr HCP multi-principal element alloycitations
- 2023Role of Fe/Co Ratio in Dual Phase Ce0.8Gd0.2O2−δ–Fe3−xCoxO4 Composites for Oxygen Separationcitations
- 2023Mechanistic study of dark etching regions in bearing steels due to rolling contact fatiguecitations
- 2023Mechanistic study of dark etching regions in bearing steels due to rolling contact fatiguecitations
- 2023Laves phases in Mg-Al-Ca alloys and their effect on mechanical properties
- 2023Coherent twin-oriented Al3Sc-based precipitates in Al matrixcitations
- 2023Development of a Bioreactor-Coupled Flow-Cell Setup for 3D In Situ Nanotomography of Mg Alloy Biodegradationcitations
- 2022Residual Stress Reduction with the LTT Effect in Low Carbon Manganese-Steel through Chemical Composition Manipulation Using Dissimilar Filler Material in Laser Beam Weldingcitations
- 2022Simulation of the fatigue crack initiation in SAE 52100 martensitic hardened bearing steel during rolling contact
- 2022Elucidation of formation and transformation mechanisms of Ca-rich Laves phase in Mg-Al-Ca-Mn alloyscitations
- 2022Proximity-induced superconductivity in (Bi1−xSbx)2Te3 topological-insulator nanowirescitations
- 2021Measurement of polarization effects in dual-phase ceria-based oxygen permeation membranes using Kelvin probe force microscopycitations
- 2021Investigation of Alloy‐Dependent Occurrence of Ferromagnetism in Carbon‐Expanded Austenitic Steel after Low‐Temperature Surface Hardening
- 2021Temperature dependent partitioning mechanisms and its associated microstructural evolution in a CMnSiAl quenching and partitioning (Q&P) steelcitations
- 2021Atomic Structure and Electron Magnetic Circular Dichroism of Individual Rock Salt Structure Antiphase Boundaries in Spinel Ferritescitations
- 2021Structural Phase Transition and In-Situ Energy Storage Pathway in Nonpolar Materials: A Reviewcitations
- 2020Antiphase Boundaries Constitute Fast Cation Diffusion Paths in SrTiO3 Memristive Devices
- 2020Antiphase Boundaries Constitute Fast Cation Diffusion Paths in SrTiO3 Memristive Devicescitations
- 2020Combined κ-carbide precipitation and recovery enables ultra-high strength and ductility in light-weight steelscitations
- 2020A Nanoscale Study of Thermally Grown Chromia on High-Cr Ferritic Steels and Associated Oxidation Mechanismscitations
- 2017Electron microscopy investigations of microstructural alterations due to classical Rolling Contact Fatigue (RCF) in martensitic AISI 52100 bearing steelcitations
- 2017Microstructural changes in White Etching Cracks (WECs) and their relationship with those in Dark Etching Region (DER) and White Etching Bands (WEBs) due to Rolling Contact Fatigue (RCF)citations
- 2016MOVPE and characterization of rhombohedral Ge1Sb2Te4/Si(111)
- 2011Au@Hg Nanoalloy Formation Through Direct Amalgamation: Structural, Spectroscopic, and Computational Evidence for Slow Nanoscale Diffusioncitations
- 2008Novel carbon nanosheets as support for ultrahigh-resolution structural analysis of nanoparticlescitations
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article
Improved Route to Linear Triblock Copolymers by Coupling with Glycidyl Ether-Activated Poly(ethylene oxide) Chains
Abstract
Poly(ethylene oxide) block copolymers (PEO$_z$ BCP) have been demonstrated to exhibit remarkably high lithium ion (Li$^+$) conductivity for Li$^+$ batteries applications. For linear poly(isoprene)-b-poly(styrene)-b-poly(ethylene oxide) triblock copolymers (PI$_x$PS$_y$PEO$_z$), a pronounced maximum ion conductivity was reported for short PEO$_z$ molecular weights around 2 kg mol$^{−1}$. To later enable a systematic exploration of the influence of the PI$_x$ and PS$_y$ block lengths and related morphologies on the ion conductivity, a synthetic method is needed where the short PEO$_z$ block length can be kept constant, while the PI$_x$ and PS$_y$ block lengths could be systematically and independently varied. Here, we introduce a glycidyl ether route that allows covalent attachment of pre-synthesized glycidyl-end functionalized PEO$_z$ chains to terminate PI$_x$PS$_y$ BCPs. The attachment proceeds to full conversion in a simplified and reproducible one-pot polymerization such that PI$_x$PS$_y$PEO$_z$ with narrow chain length distribution and a fixed PEO$_z$ block length of z = 1.9 kg mol$^{−1}$ and a Đ = 1.03 are obtained. The successful quantitative end group modification of the PEO$_z$ block was verified by nuclear magnetic resonance (NMR) spectroscopy, gel permeation chromatography (GPC) and differential scanning calorimetry (DSC). We demonstrate further that with a controlled casting process, ordered microphases with macroscopic long-range directional order can be fabricated, as demonstrated by small-angle X-ray scattering (SAXS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It has already been shown in a patent, published by us, that BCPs from the synthesis method presented here exhibit comparable or even higher ionic conductivities than those previously published. Therefore, this PEO$_z$ BCP system is ideally suitable to relate BCP morphology, order and orientation to macroscopic Li$^+$ conductivity in Li$^+$ batteries.