693.932 PEOPLE
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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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| Kočí, Jan | Prague |
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| Azevedo, Nuno Monteiro |
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Bernard, Samuel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (58/58 displayed)
- 2024Unveiling the potential of ultra-low load Co on porous carbon-rich SiCN(O) fibre mats towards oxygen electrocatalysis in alkaline mediumcitations
- 2024Downshift of the Ni d band center over Ni nanoparticles in situ confined within an amorphous silicon nitride matrixcitations
- 2023Development of preceramic polymers as ceramic fiber precursors elaborated in the Si-B-Al-O-N system
- 2023Modification of organosilicon polymers by transition metal complexes towards functional nanocomposites for energy (invited conference)
- 2023Development of preceramic polymers as ceramic fiber precursors elaborated within the Si-B-Al-O-N system
- 2023From polysilazanes to highly micro-/mesoporous Si3N4 containing in situ immobilized Co or Ni-based nanoparticlescitations
- 2023Advanced nanocomposite materials made of TiC nanocrystals in situ immobilized in SiC foams with boosted spectral selectivitycitations
- 2023Optically selective SiC-based nanocomposite objects derived from titanium and boron-modified polycarbosilanescitations
- 2023Low temperature in situ immobilization of nanoscale fcc and hcp polymorphic nickel particles in polymer-derived Si–C–O–N(H) to promote electrocatalytic water oxidation in alkaline mediacitations
- 2023Polymer‐derived β‐SiAlON:Eu 2+ phosphorscitations
- 2023Synthesis and characterization of polymer-derived anti-perovskite nitride/amorphous silicon nitride nanocomposites
- 2022Chemical route for synthesis of β-SiAlON:Eu2+ phosphors combining polymer-derived ceramics route with non-hydrolytic sol-gel chemistrycitations
- 2022Mechanistic Investigation of the Formation of Nickel Nanocrystallites Embedded in Amorphous Silicon Nitride Nanocompositescitations
- 2022Polymer‐derived β‐SiAlON:Eu 2+ phosphorscitations
- 2022Ceramic nanocomposites prepared via the in situ formation of a novel TiZrN2 nanophase in a polymer-derived Si3N4 matrixcitations
- 2022From design to characterization of zirconium nitride/silicon nitride nanocompositescitations
- 2021Hydrogen transport property of polymer-derived cobalt cation-doped amorphous silicacitations
- 2021Tuning of the high temperature behaviour of Si–C–N ceramics via the chemical crosslinking of poly(vinylmethyl-co-methyl)silazanes with controlled borane contents ; Open Ceramicscitations
- 2021Coupling precursor chemistry and rapide hot pressing: toward the design of functional polymer-derived carbide and nitride ceramics (Invited conference, VIRTUAL)
- 2021Low temperature in situ formation of cobalt in silicon nitride toward functional nitride nanocomposites †citations
- 2021Polymer-derived ceramics (PDCs) as an innovative processing route toward TiC/SiC nanocomposites with high potential as solar absorbers (Invited conference, VIRTUAL)
- 2021The influence of pyrolysis temperature on the oxidation resistance of carbon-rich SiCN ceramics derived from reaction of silazanes with acrylonitrilecitations
- 2020Silicon carbide filters and porous membranes: A review of processing, properties, performance and applicationcitations
- 2020In-Situ Synthesis and Characterization of Nanocomposites in the Si-Ti-N and Si-Ti-C Systemscitations
- 2020Disordered mesoporous polymer derived N-doped TiO2/Si-O-C-N nanocomposites with nanoscaled heterojunctions towards enhanced adsorption and harnessing of visible lightcitations
- 2020Design of nanoscaled heterojunctions in precursor-derived t-ZrO2/SiOC(N) nanocomposites: Transgressing the boundaries of catalytic activity from UV to visible lightcitations
- 2020High temperature emissivity of SiC, TiC and SiC-TiC nanocomposites as solar selective absorber materials: comparison of room temperature and on-sun MEDIASE facility measurements
- 2018Novel Precursor-Derived Meso-/Macroporous TiO2/SiOC Nanocomposites with Highly Stable Anatase Nanophase Providing Visible Light Photocatalytic Activity and Superior Adsorption of Organic Dyescitations
- 2018Plasmon enhanced visible light photocatalytic activity in polymer-derived TiN/Si-O-C-N nanocompositescitations
- 2018Ceramics based on the Si-Ti-(C)-N system as functional composites and nanocomposites designed from preceramic polymers
- 2017Molecular Chemistry and Engineering of Boron-Modified Polyorganosilazanes as New Processable and Functional SiBCN Precursorscitations
- 2017Nanocomposites through the Chemistry of Single-Source Precursors: Understanding the Role of Chemistry behind the Design of Monolith-Type Nanostructured Titanium Nitride/Silicon Nitridecitations
- 2017A comprehensive study on the influence of the polyorganosilazane chemistry and material shape on the high temperature behavior of titanium nitride/silicon nitride nanocompositescitations
- 2017Molecular design of melt-spinnable co-polymers as Si–B–C–N fiber precursorscitations
- 2016Polymer-Derived Silicoboron Carbonitride Foams for CO2 Capture: From Design to Application as Scaffolds for the in Situ Growth of Metal–Organic Frameworkscitations
- 2016Addition of boron at molecular scale in Silicon Carbide Precursors: Effect on the pyrolysis behavior of precursors and on the final properties of silicon carbide
- 2016Microcellular Silicon Carbide Foams from boron-modified polycarbosilanes
- 2015Ceramic Nanocomposites from Tailor-Made Preceramic Polymerscitations
- 2015From Chemistry to Processing of Boron-Modified Polycarbosilazanes: Toward the Preparation of SilicoBoron CarboNitride Ceramics
- 2015Preparation of polymer-derived Si–B–C–N monoliths by spark plasma sintering techniquecitations
- 2015Facile Synthesis and High Rate Capability of Silicon Carbonitride/Boron Nitride Composite with a Sheet-Like Morphologycitations
- 2014Nanostructured Boron Nitride: From Molecular Design to Hydrogen Storage Applicationcitations
- 2014In Situ Controlled Growth of Titanium Nitride in Amorphous Silicon Nitride: A General Route Toward Bulk Nitride Nanocomposites with Very High Hardnesscitations
- 2013Evaluation of the processability of boron‐containing organosilazane polymers based on shear rheologycitations
- 2012Chemistry, structure and processability of boron-modified polysilazanes as tailored precursors of ceramic fiberscitations
- 2009Design and characterization of novel SiBCN preceramic polymers as potential candidates for a new generation of SiBCN ceramic fibers
- 2009Shaping potentialities of aluminum nitride polymeric precursorscitations
- 2007Synthesis of Boron Nitride Nanotubes by a Template-Assisted Polymer Thermolysis Processcitations
- 2006Controlling the chemistry, morphology and structure of boron nitride-based ceramic fibers through a comprehensive mechanistic study of the reactivity of spinnable polymers with ammoniacitations
- 2006Chemical tailoring of Single-Source molecular and polymeric precursors for the preparation of ceramic fibers
- 2006Structural and Mechanical Behavior of Boron Nitride Fibers Derived from Poly[(Methylamino)Borazine] Precursors: Optimization of the Curing and Pyrolysis Procedurescitations
- 2006Kinetic modeling of the polymer-derived ceramics route: Investigation of the thermal decomposition kinetics of poly[B-(methylamino)borazine] precursors into boron nitridecitations
- 2005Alkylaminoborazine-based precursors for the preparation of boron nitride fibers by the polymer-derived ceramics (PDCs) routecitations
- 2005Boron-modified polysilazane as a novel single-source precursor for SiBCN ceramic fibers: synthesis, melt-spinning, curing and ceramic conversioncitations
- 2005Preparation of high-temperature stable SiBCN fibers from tailored single source polyborosilazanescitations
- 2005POLYBOROSILAZANE-DERIVED CERAMIC FIBERS IN THE Si-B-C-N QUATERNARY SYSTEM FOR HIGH-TEMPERATURE APPLICATIONS
- 2005Boron-modified polysilazane as a novel single-source precursor for SiBCN ceramic fibers: synthesis melt-sinning, curing and ceramic conversioncitations
- 2004Evolution of structural features and mechanical properties during the conversion of poly[(methylamino)borazine] fibers into boron nitride fiberscitations
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article
Evaluation of the processability of boron‐containing organosilazane polymers based on shear rheology
Abstract
The shear rheology of boron-containing organosilazane polymers has been investigated in detail with a double objective. The first objective was to evaluate their processability to form fibers by melt-spinning, and the second objective was to predict their molecular structure. We focused on a representative type of boron-containing organosilazane polymers called boron-modified polysilazanes (BmPSs) with the ideal structure [B(C 2 H 4 SiCH 3 NCH 3 ) 3 ] n (C 2 H 4 = CHCH 3 , CH 2 CH 2 ). Characterization tools showed that their viscous and elastic properties are strongly affected by molecular parameters fixed during synthesis and in particular by the methylamine (MA) : tris(dichlorosilylethyl)borane (TDSB) molar ratio imposed during their synthesis. In the spinning domain, the frequency dependences of the storage and loss moduli showed that the prerequisite conditions for obtaining polymer fibers are fulfilled with samples having 9.0 ≤ MA : TDSB molar ratios ≤ 9.7. However, the presence of thickening in the computed extensional viscosity function and the loss of cohesion of filament derived from samples with MA : TDSB ratio > 9.2 during drawing put in evidence the best potential of polymers with 9 ≤ MA : TDSB ratio ≤ 9.2 to generate fine-diameter solid filaments in a stable process. Based on rheological tests, the molecular structure of BmPSs has been tentatively predicted in relation with the MA : TDSB ratio. The increase of the latter favored the disentanglement of the polymer framework, and we postulated that it lowered the molecular weight.