A5064001876- biodegradable polymer synthesis and properties
- Click Chemistry and Applications
- Advanced Cellulose Research Studies
- Advanced Polymer Synthesis and Characterization
- Silicone and Siloxane Chemistry
- Polymer composites and self-healing
- Synthesis and properties of polymers
- Synthetic Organic Chemistry Methods
- Chemical Synthesis and Analysis
- Carbon dioxide utilization in catalysis
- Polysaccharides Composition and Applications
- Lignin and Wood Chemistry
- Advanced Sensor and Energy Harvesting Materials
- Nanocomposite Films for Food Packaging
- Ionic liquids properties and applications
- Photopolymerization techniques and applications
- Hydrogels: synthesis, properties, applications
- Carbohydrate Chemistry and Synthesis
- Polymer Surface Interaction Studies
- Catalysis for Biomass Conversion
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Catalytic Cross-Coupling Reactions
- Natural Fiber Reinforced Composites
- Electrospun Nanofibers in Biomedical Applications
- Chemical Synthesis and Reactions
Université Claude Bernard Lyon 1
2015-2024
Centre National de la Recherche Scientifique
2015-2024
Ingenierie des Materiaux polymeres
2015-2024
Université Jean Monnet
2022-2024
Institut National des Sciences Appliquées de Lyon
2015-2024
Institute for Magnetospheric Physics
2020
Forum Réfugiés - Cosi
2015-2020
Université Paris Cité
2009-2019
Délégation Paris 5
2009-2019
Canadian Nautical Research Society
2015-2016
Abstract This review covers the literature concerning modification of polysaccharides through controlled radical polymerizations (NMP, ATRP and RAFT). The different routes to well‐defined polysaccharide‐based macromolecules (block graft copolymers) graft‐functionalized polysaccharide surfaces as well applications these hybrids are extensively discussed. magnified image
Carboxymethyl cellulose (CMC) has attracted considerable scientific attention, thanks to its enhanced water solubility and wide range of possible chemical reactions. In the present review, we attempt summarize current knowledge on modifications CMC, focusing specifically derivatization carboxyl functions, through “grafting onto” strategies. CMC derivatives, obtained by grafting small molecules and/or polymers, can be engineered as peculiar assembled architectures (e.g., conjugates,...
Tailored handcuffs: α-Azide-ω-alkyne oligomers are obtained in high yields from copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC), iterative chain growth, and protection–deprotection strategies. Intramolecular CuAAC under pseudo-high-dilution conditions then macrocycles with n=1–8 triazole units the cyclic backbone (picture shows n=2; C gray, O red, N blue, H white).
The present work explores the possibility of chemically modifying carboxymethyl cellulose (CMC), a widely diffused commercial ether, by grafting hydrophobic moieties. Amidation CMC, at high temperature and in heterogeneous conditions, was selected as synthetic tool for on CMC panel commercially available amines (bearing long aliphatic chains, alkyl aromatic heteroaromatic groups, more or less spaced from backbone). reaction successfully carried out absence solvents, catalysts coupling...
A novel step growth polymerization A-B strategy based on the click chemistry polyaddition of tailor-made alpha-azide-omega-alkyne low molar mass monomers was developed, leading to polytriazole (co)polymers with tunable structures and properties.
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTCopper-Catalyzed vs Thermal Step Growth Polymerization of Starch-Derived α-Azide−ω-Alkyne Dianhydrohexitol Stereoisomers: To Click or Not Click?Céline Besset†‡, Sandra Binauld†, Mathias Ibert‡, Patrick Fuertes‡, Jean-Pierre Pascault†, Etienne Fleury†, Julien Bernard*†, and Eric Drockenmuller*†View Author Information† INSA de Lyon, Ingénierie des Matériaux Polymères (IMP, UMR CNRS 5223), Université Claude...
The synthesis by aqueous RAFT polymerization of hydrophilic narrowly dispersed imidazolium-based poly(ionic liquid)s (Đ typically below 1.20) is reported. Full monomer conversion achieved within hours and high end-group fidelity the living end groups affords preparation well-defined block copolymers. resulting liquid) macroRAFT agents are finally exploited to polymerize 2-vinylpyridine in water generate PIL-based nanoparticles various morphologies (spheres, vesicles, or worms) a one-pot...
ABSTRACT The ileal lesions of Crohn's disease (CD) patients are colonized by adherent-invasive Escherichia coli (AIEC) bacteria. These bacteria adhere to mannose residues expressed CEACAM6 on host cells in a type 1 pilus-dependent manner. In this study, we investigated different antagonists FimH, the adhesin pili, for their ability block AIEC adhesion intestinal epithelial (IEC). Monovalent and multivalent derivatives n -heptyl α- d- mannoside (HM), nanomolar antagonist were tested vitro IEC...
n-Heptyl α-d-mannose (HM) is a nanomolar antagonist of FimH, virulence factor E. coli. Herein we report on the construction multivalent HM-based glycopolymers as potent antiadhesives type 1 piliated We investigate glycopolymer/FimH and glycopolymer/bacteria interactions show that efficiently inhibit bacterial adhesion disrupt established cell-bacteria in vitro at very low concentration (0.1 μM mannose unit basis). On valency-corrected basis, are, respectively, 10(2) 10(6) times more than HM...
Abstract A general, rapid, and undemanding method to generate at will functional oil‐filled nanocapsules through nanoprecipitation is reported. On the basis of polymer hexadecane/water/acetone phase diagrams, composition can be set so that chains preferentially stick interface oil droplets create nanocapsules. The decorated with biorelevant molecules (biotin, fluorescent tags, metal nanoparticles) within shell loaded hydrophobic in a simple one‐pot procedure.
Abstract Well‐defined glyco‐polyorganosiloxanes were synthesized by the Cu( I )‐catalyzed Huisgen 1,3‐dipolar cycloaddition reaction (often simply referred to as “click” chemistry). N ‐propargylglycosylamines 2 and 4 first from cellobiose ( 1 ) xylogluco‐oligosaccharide XGOs 3 without protecting groups. The azide function was introduced into polydimethylsiloxanes [PDMS: 5 (MD′M) 7 (M′DM′)] azidolysis of counterpart epoxy silicon with NaN afford mono‐azido 6 di‐azido 8 derivatives,...
Abstract Oligomers and polymers containing triazole units were synthesized by the copper(I)‐catalyzed 1,3‐dipolar cycloaddition step‐growth polymerization of four difunctional azides alkynes. In a first part, monofunctional benzyl azide was used as chain terminator for polyaddition 1,6‐diazidohexane α,ω‐bis(O‐propargyl)diethylene glycol, leading to polytriazole oligomers controlled average degree (DP n = 3–20), perform kinetic studies on low‐viscosity compounds. The monitoring click 1 H NMR...
Short date palm tree lignocellulosic fibers were used as a reinforcing phase in polyepoxy thermoset commodity resin. Unmodified well counterparts chemically oxidized using TEMPO catalyst mediation fillers for composite materials prepared Resin Transfer Molding process. The preparation was facilitated the case of composites based on fibers. During process, front displacement injected resin more regular, homogeneous, and faster morphology, thermal mechanical properties resultant characterized...
We report an original strategy towards supramolecular assembly of reversible comb-shaped polymers in aqueous solution through β-cyclodextrin–adamantane (β-CD–Ada) host–guest inclusion. Ada-functionalized poly(acrylic acid) grafts were generated by RAFT polymerization mediated adamantane-α-functionalized agent. A β-CD-grafted backbone was obtained a two-step procedure: alkyne-functionalized backbones first trimethylsilyl propargyl methacrylate and subsequently converted host system CuAAC with...
The design of dialkyne and diazide functionalized dianhydrohexitol stereoisomers (1−6) afforded a new family starch-based polytriazoles (7−15) with defined stereochemistry through A2 + B2 CuAAC step growth polymerization. present strategy gave rise to having high biosourced weight fraction (superior 60% wt) exhibiting relatively molar masses (Mn = 8−17 kg/mol) that could be easily dissolved in DMF or DMSO. obtained materials were amorphous displayed transition temperatures (Tg 125−166 °C) as...