A5005467665- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Ionic liquids properties and applications
- Advanced Polymer Synthesis and Characterization
- Carbon dioxide utilization in catalysis
- biodegradable polymer synthesis and properties
- Semiconductor materials and interfaces
- Advanced Battery Technologies Research
- Perovskite Materials and Applications
- Extraction and Separation Processes
- Synthesis and properties of polymers
- Nanomaterials for catalytic reactions
- Graphene research and applications
- Molecular Junctions and Nanostructures
- Synthetic Organic Chemistry Methods
- Chemical Synthesis and Reactions
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Catalysis and Oxidation Reactions
- Advanced Sensor and Energy Harvesting Materials
- Asymmetric Hydrogenation and Catalysis
- Dielectric materials and actuators
University of Liège
2012-2021
Centre de Recherches sur les Macromolécules Végétales
2016-2019
Division of Chemistry
2014-2017
Centre National de la Recherche Scientifique
2005-2012
Université de Pau et des Pays de l'Adour
2007-2012
Laboratoire de Chimie des Polymères Organiques
2010-2011
Sorbonne Université
2011
Laboratoire de Réactivité de Surface
2010
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
2008
Université Paris-Est Créteil
2005
Redox-active catechols are bioinspired precursors for ortho-quinones that characterized by higher discharge potentials than para-quinones, the latter being extensively used as organic cathode materials lithium ion batteries (LIBs). Here, this study demonstrates rational molecular design of copolymers bearing catechol- and Li+ ion-conducting anionic pendants endow redox-active polymers (RAPs) with ultrarobust electrochemical energy storage features when combined to carbon nanotubes a...
Poly(ionic liquid)s (PILs) have attracted considerable attention as innovative single-ion solid polyelectrolytes (SPEs) in substitution to the more conventional electrolytes for a variety of electrochemical devices. Herein, we report precise synthesis, characterization, and use SPEs novel double PIL-based amphiphilic diblock copolymer (BCP), i.e., where all monomer units are N-vinyl-imidazolium type, with triethylene glycol pendant groups first block statistical distribution N-vinyl-3-ethyl-...
In this paper, we report the synthesis via Grignard metathesis method (GRIM) of donor/acceptor double cable copolymers with diblock and random sequences, where conjugated polythiophene backbone is substituted hexyl chains alkyl bearing fullerene. First, monomers 2,5-dibromo-3-hexylthiophene 2,5-dibromo-3-(1,3-dioxa-2-octyl)thiophene were randomly copolymerized yielded after grafting fullerene C60 CoPTR-C. Second, same used to synthesize a copolymer block made from copolymerization both while...
Preparation of transparent and superhydrophobic coatings by co-deposition an aqueous solution amphiphilic fluorinated block copolymer with silica was developed.
Polycarbonates bearing linear carbonate linkages and polyether segments have demonstrated to be highly attractive solid electrolyte candidates for the design of safe energy storage devices, example, lithium metal batteries. In this contribution, we are studying influence introduction some cyclic within polymer backbone on properties. We first describe synthesis polycarbonates/polyethers containing different contents both chain by copolymerization a reactive CO2-based monomer...
We report on the synthesis of new thermally cross-linkable all-conjugated diblock copolymers composed a poly(3-hexylthiophene) (P3HT) block and an acrylate-functionalized polythiophene block. These are then used in bulk heterojunction (BHJ) solar cells with [6,6]-phenyl C61-butyric acid methyl ester (PCBM), their photovoltaic performances compared standard P3HT/PCBM devices. Thermal cross-linking functional copolymers/PCBM blends is performed to improve thermal stability active layer. BHJ...
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTIntegration of Redox-Active Catechol Pendants into Poly(ionic liquid) for the Design High-Performance Lithium-Ion Battery CathodesNagaraj PatilNagaraj PatilCentre Education and Research on Macromolecules (CERM), CESAM Unit, Department Chemistry, University Liege, Allée de la Chimie B6A, 4000 Liége, BelgiumElectrochemical Processes IMDEA Energy Institute, Avda. Ramón Sagra 3, 28935 Móstoles, SpainMore by Nagaraj...
A CO<sub>2</sub>-sourced self-standing solid electrolyte membrane is prepared and evaluated for room temperature operating lithium batteries.
Abstract α‐Alkylidene cyclic carbonates (αCCs) recently emerged as attractive CO 2 ‐sourced synthons for the construction of complex organic molecules. Herein, we report transformation αCCs into novel families sulfur‐containing compounds by organocatalyzed chemoselective addition thiols, following a domino process that is switched on/off depending on desired product. The extremely fast and versatile in substrate scope, provides selectively linear thiocarbonates or elusive tetrasubstituted...
Hydrogen bonded assemblies are usually decomposed by polar organic solvents. However, we have succeeded in preparing a strongly associated supramolecular polymer which forms viscous solutions competitive solvents such as tetrahydrofuran.
A combined theoretical and experimental investigation of the electronic structure optical properties poly(3-hexylthiophene) (P3HT), poly[3-(4-octylphenyl)thiophene] (POPT) poly[3-(4-octylphenoxy)thiophene] (POPOT) is reported. In comparison with P3HT, POPT POPOT exhibit better stabilities presence an oxygen atom and/or a phenyl ring in side chains enhances conjugation. Quantum chemical calculations have been performed on oligomers increasing chain length to establish changes when going from...
We report a simple approach for the production of polymer functionalized graphene Li-ion battery anodes.
A facile and scalable process to prepare nanostructured 3D porous networks combining graphene, N-doped carbon silicon nanoparticles (G@Si@C) as a promising anode material for lithium ion batteries.
The performance of lithium- and sodium-ion batteries relies notably on the accessibility to carbon electrodes controllable porous structure chemical composition. This work reports a facile synthesis well-defined N-doped carbons (NPCs) using poly(ionic liquid) (PIL) as precursor, graphene oxide (GO)-stabilized poly(methyl methacrylate) (PMMA) nanoparticles sacrificial template. GO-stabilized PMMA are first prepared then decorated by thin PIL coating before carbonization. resulting NPCs reach...
Abstract This article reports the synthesis and characterization of a new polythiophene derivative phenoxy‐substituted, poly[3‐(4‐octylphenoxy)thiophene] (POPOT). The oxidative polymerization was found to yield low molecular weight material, whereas modified Grignard metathesis (GRIM) yielded polymers high weights. One‐ two‐dimensional NMR indicated latter be highly regioregular. POPOTs exhibited higher thermal stabilities than equivalent alkoxy‐substituted polythiophenes red shifts in...
A new strategy for the synthesis of a well-defined redox active polymer, polyacrylate bearing TEMPO, and its grafting onto gold substrate is described.
We report on a convenient and simple process to prepare highly regioregular poly(thiophene)-based multiblock copolymers by novel thermally induced coupling reaction. Diblock of 3-hexylthiophene (3HT) 2,5-dibromo-3-(2-(2-tetrahydropyranyl-2-oxy)ethyl)thiophene (THPET) end-capped nickel complex (Br-P3HT-b-PTHPET-Ni(dppp)Br) are first prepared using Ni(dppp)Cl2 as catalyst at 30 °C Grignard metathesis polymerization (GRIM process). The these α-bromo, ω-Ni(dppp)Br telechelic diblock then occurs...
Low bandgap copolymers based on fluorinated isoindigo afford 5.0% efficiency in polymer solar cells.
New thiophene derivatives (THs) are prepared and proposed here as new photoinitiators in combination with an iodonium salt for the cationic polymerization of vinylethers. They contain electron donor acceptor (D–A) moieties exhibit red‐shifted absorption spectra. allow use a long‐wavelength excitation at 532 nm using laser diode. Irradiation from green light‐emitting diode (LED) 514 can also be used. The high reactivity upon irradiation low‐intensity LED highlights structures. Interesting...
Abstract The preparation of α,α,β-trisubstituted β-lactones has opened the route to living anionic ring-opening polymerization these monomers. Therefore, transfer reactions due hydrogen abstraction were limited and it is now possible strickly control sample molecular weight. Moreover, end-groups lead block co-polymers with controlled lenghts. In same way, high-molecular-weight statistical have been synthesized. Hydrolyzable micelles nanoparticles will be prepared from after chemical...
Various poly[3-(4-octylphenyl)thiophene]s (POPTs) were prepared either by oxidative polymerisation or chain-growth Grignard metathesis (GRIM). In accordance with previous results, the former yielded polydisperse POPT. The method based on GRIM reaction made possible preparation of medium and higher molecular weight polymers lower polydispersities. POPTs found to have band-gaps ca. 1.7 eV. photovoltaic characteristics POPTs-blend-[6,6]-phenyl C61 butyric acid methyl ester (PCBM) composites...