A5042914190- Advanced Polymer Synthesis and Characterization
- Supramolecular Chemistry and Complexes
- Organometallic Complex Synthesis and Catalysis
- biodegradable polymer synthesis and properties
- Supramolecular Self-Assembly in Materials
- Carbon dioxide utilization in catalysis
- Hydrogels: synthesis, properties, applications
- Pickering emulsions and particle stabilization
- Advanced X-ray Imaging Techniques
- Chemical Synthesis and Analysis
- Asymmetric Hydrogenation and Catalysis
- Luminescence and Fluorescent Materials
- Dendrimers and Hyperbranched Polymers
- Synthetic Organic Chemistry Methods
- Photopolymerization techniques and applications
- Cancer Treatment and Pharmacology
- Synthesis and properties of polymers
- Chemistry and Chemical Engineering
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Molecular Sensors and Ion Detection
- Porphyrin and Phthalocyanine Chemistry
- Additive Manufacturing and 3D Printing Technologies
- Gas Sensing Nanomaterials and Sensors
- Polymer composites and self-healing
- Optical Coherence Tomography Applications
Unité Matériaux et Transformations
2017-2024
École Centrale de Lille
2020-2024
Centre National de la Recherche Scientifique
2012-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
Université de Lille
2017-2024
Université de Sherbrooke
2017-2018
École Nationale Supérieure de Chimie de Lille
2017-2018
Université du Québec à Montréal
2016
Unité de catalyse et de chimie du solide de Lille
2012-2014
Université Lille Nord de France
2012-2014
Supramolecular hydrogels elaborated from a mixture of native α-cyclodextrin and poly(ethylene glycol)s in water proved to be effective media for higher olefins Rh-catalyzed hydroformylation due the formation Pickering emulsions.
Thermosetting materials (thermosets) are widely used organic derived from 3D-network forming monomers. Achieving high glass transition temperature (Tg) thermosets is often a challenging task due to the complexity of designing efficiently and cheaply monomers which rigid enough prevent molecular motions within thermoset. We report here very simple route prepare epoxy with Tg as 350 °C, based on insertion polynorbornenes. The monomer (PNBE(epoxy)) prepared by epoxidation...
Cooperativity has been implicated to explain the catalytic performances of cyclodextrin-substituted polymers in aqueous rhodium-catalyzed hydroformylation 1-hexadecene, thus opening door transformation very hydrophobic substrates biphasic catalysis by supramolecular means.
A significant improvement in Rh-catalyzed hydroformylation of very hydrophobic alkenes was achieved using a biphasic catalytic system consisting substrate-containing organic phase and catalyst-containing hydrogel [consisting poly(ethylene glycol) 20000 (PEG20000) α-cyclodextrin (α-CD)]. The performance the Pickering emulsion that resulted from formation α-CD/PEG20000 crystallites at oil droplet surface proved to be greatly dependent upon presence additives. We showed controlled uploads...
The catalytic insertion polymerization of substituted norbornenes (NBEs) leads to the formation a family polymers which combine extreme thermomechanical properties as well unique optical and electronic properties. However, this reaction is marred by lack reactivity endo monomers. It has long been assumed that these monomers chelate metallic catalyst, leading species are inactive in polymerization. Here we examine cis-5-norbornene-2,3-dicarboxylic anhydride (so-called carbic anhydride, CA)...
Cyclodextrins substituted with a sulfophenyl phosphane show an excellent recognition ability towards higher olefins in aqueous biphasic Rh-catalyzed hydroformylation.
Abstract Six different β‐cyclodextrin (β‐CD) dimers have been synthesized by copper‐catalyzed azide alkyne cycloaddition. The nature of the spacer connecting two β‐CDs has varied in length and hydrophilicity. For each dimer, a detailed NMR study was carried out D 2 O. It found that, whereas β‐CD having short exhibited only one conformation, long and/or hydrophobic spacers showed conformations. Indeed, latter underwent an inversion process leading to self‐inclusion CD cavities. behavior six...
The radical homopolymerization of isosorbide monoacrylate (IMA) is studied to obtain transfer constants and fully bio-based thermosets.
Abstract Aqueous biphasic catalysis continues to attract strong interest, especially when very hydrophobic substrates are concerned. Indeed, their insolubility in water strongly limit transformation by water‐soluble organometallic catalysts. To improve contacts between the substrate‐containing organic phase and catalyst‐containing phase, one of best solutions consists using interfacial additives capable supramolecularly recognize substrate and/or catalyst. In present study, modified...
New cyclodextrin (CD)-grafted polymers functionalized with water-soluble phosphanes were synthesized in three steps starting from polyNAS. Once characterized by NMR spectroscopy and size-exclusion chromatography, they used as additives Rh-catalyzed hydroformylation of 1-hexadecene. The combined supramolecular coordinating properties these allowed increasing the catalytic activity reaction without affecting selectivities.
Abstract A series of linear acrylic copolymers based on Isobornyl acrylate (IBOA) and isobutyl (IsoBA) were elaborated by radical photopolymerization. In addition, several photochemically crosslinked poly(IBOA‐co‐IsoBA) prepared introducing small amounts 1,6‐hexanedioldiacrylate as crosslinking agent. The evolution the glass transition temperature was determined experimentally differential scanning calorimetry a function composition for both poly(IBOA‐co‐IsoBA), yielding T g values ranging...
Self-immolative polymers (SIPs) allow a triggered depolymerization, which is an effective way to control the function of polymer-based systems. In this work, hydrophobic SIP segments and hydrophilic polyethylene glycol (PEG) are combined in diblock triblock amphiphilic architectures, SIP-based blocks made polycaprolactone-like backbones with UV-sensitive nitrobenzene pendant groups. The depolymerization designed architectures solution monitored by NMR, UV–vis spectroscopy, size exclusion...
Norbornene can be polymerized by a variety of mechanisms, including insertion polymerization whereby the double bond is and bicyclic nature monomer conserved. The resulting polymer, polynorbornene, has very high glass transition temperature, Tg, interesting optical electrical properties. However, functional norbornenes this mechanism complicated fact that endo substituted norbornene has, in general, low reactivity. Furthermore, separation from exo tedious task. Here, we present simple...
Controlling the swelling properties of hydrogels is primary importance for many applications ranging from actuators and valves to tissue engineering drug delivery. Herein, we report use cyclobis(paraquat-p-phenylene) (CBPQT4+,4X–) as a versatile host fine-tune behavior 1,5-dialkyloxynaphthalene guest containing poly(N,N-dimethylacrylamide) (NaphtGelz) through supramolecular host–guest complexation. While equilibrium NaphtGelz in water decreases with increasing amount hydrophobic naphthalene...
Thanks to their excellent thermomechanical properties, cross-linked polymers are widely used for a myriad of applications. However, due the presence covalent cross-links, these usually considered nonrecyclable. For hydrocarbon polymers, this problem is particularly acute because, lack functional groups, few known cross-linking strategies based on highly stable bonds. To address problem, we propose here strategy physically cross-link polymer by adding supramolecular host, which can complex...