A5053719860- Advanced Polymer Synthesis and Characterization
- Surfactants and Colloidal Systems
- Polymer composites and self-healing
- Polymer Nanocomposites and Properties
- biodegradable polymer synthesis and properties
- Polymer Surface Interaction Studies
- Polymer crystallization and properties
- Dendrimers and Hyperbranched Polymers
- Hydrogels: synthesis, properties, applications
- Chemical Synthesis and Analysis
- Synthetic Organic Chemistry Methods
- Enhanced Oil Recovery Techniques
- Innovative Microfluidic and Catalytic Techniques Innovation
- Nutrition, Genetics, and Disease
- Spectroscopy and Quantum Chemical Studies
- Click Chemistry and Applications
- Silicone and Siloxane Chemistry
- Zoonotic diseases and public health
- Electrostatics and Colloid Interactions
- Agriculture Sustainability and Environmental Impact
- Photochromic and Fluorescence Chemistry
Université Claude Bernard Lyon 1
2019-2024
Centre National de la Recherche Scientifique
2010-2024
Institut National des Sciences Appliquées de Lyon
2024
Ingenierie des Materiaux polymeres
2024
Université Jean Monnet
2024
FORTH Institute of Electronic Structure and Laser
2016-2019
University of Bristol
2019
Le Mans Université
2013-2016
Institut des Molécules et Matériaux du Mans
2013-2014
The effect of two crosslink strategies on the preparation chitosan-based covalent hydrogels was investigated employing widely used thiol-ene reaction. This versatile "click" chemistry can be activated either photochemically or thermochemically. Initially, well-purified chitosan (CS, DA ∼4 %, Mw ∼580 kg mol−1) separately functionalized with vinyl (CS-ene) thiol (CS-SH) groups in aqueous media. Subsequently, were compared where reaction occurs respectively between: (S1) modified chitosans...
We investigate the conformation of well-defined dendronized polymers (denpols) based on poly(norborene) (PNB) and poly(endo-tricycle[4.2.2.0]deca-3,9-diene) (PTD) backbones employing static dynamic light scattering. Their synthesis by ring-opening metathesis polymerization (ROMP) led to fully grafted high molecular weight denpols with narrow polydispersity. In dilute solutions, persistence lengths were estimated (radius gyration) (translational diffusion) chain conformational properties...
Well-defined dendronized polymers (denpols) bearing high-generation dendron are attractive nano-objects as high persistency provides distinct properties, contrast to the random coiled linear However, their syntheses via graft-through approach have been very challenging due structural complexity and steric hindrance retarding polymerization. Here, we report first example of synthesis poly(norbornene) (PNB) containing ester dendrons up sixth generation (G6) by ring-opening metathesis This is...
Polysaccharide-based microgels are effective vectors for the delivery of biopharmaceutics and functional components in tissue engineering due to their bioactivity biocompatibility. Currently, synthesis chemically cross-linked typically requires long reaction times a high-energy input low yielding volumes water phase used. Herein, we report norbornene-derived chitosan (CS-nbn-COOH), which can undergo rapid gelation presence thiolated cross-linker through highly efficient thiol-ene photoclick...
Abstract The self‐assembly in water of an amphiphilic P(nBMA 50% ‐ stat ‐DMAEMA ) 100 b ‐PDMAEMA 235 diblock copolymer based on hydrophilic dimethylaminoethylmethacrylate (DMAEMA) units and hydrophobic n ‐butylmethacrylate ( BMA) ones is reported. DMAEMA have been incorporated into the block this to moderate its character. Light scattering experiments revealed formation micelles whose apparent aggregation number varied reversibly with ionization degree units. Incorporating thus a way...
The spontaneous self-assembly of a novel comb-like amphiphilic copolyelectrolyte in water was studied by small angle neutron scattering and freeze fracture transmission electron microscopy. copolymer synthesized randomly grafting pendant quaternized alkylamine moieties to poly(styrene) chain. effects the density length alkyls (C12–C18) on structure were investigated systematically. polymers soluble over broad range densities (35–80 mol%) where they assembled either into lamellae (35–55...
The structure of the self-assemblies formed by amphiphilic comblike copolyelectrolytes dispersed in water has been investigated scattering techniques (light and neutron) transmission electronic microscopy. polymers consisted a polystyrene backbone grafted with fixed amount pendant N,N-dimethyl quaternary ammonium alkyl groups various lengths ranging from C12 up to C18. In aqueous solution, self-assembled into small spherical aggregates at low concentrations cylindrical above critical...
The "One Health" approach underscores the connection between human, animal, and environmental health, promoting solutions to global challenges like climate change biodiversity loss. Planetary Health Diet (PHD) promotes a plant-based diet with organically grown plants reduce impact of meat production decrease risk non-communicable diseases (NCDs). BIOQUALIM project will evaluate PHD's effectiveness in preventing NCDs periodontal cancers through four inter-related studies.
Following previous work evidencing that short PPG chains incorporated into crude SBR/silica nanocomposites act as filler-network softeners without changing their structure, we propose in the present report to examine more operative vulcanized materials.
A new formulation of the widely used nanocomposites based on SBR (ca. 250 kg mol-1) and fractal silica fillers is proposed by substituting usual covering coupling agents with short chains (4 polypropylene glycol (PPG). We study in a systematic way structural evolution changes linear non-linear mechanical properties two series samples varying: (i) volume fraction (Φsi = 0, 5, 10 15 vol%) PPG-free (ii) amount PPG for given content Φsi vol%. While first as reference, showing expected trends...
The rheological properties of viscoelastic aqueous solutions wormlike micelles formed by the self-assembly comblike copolyelectrolytes have been investigated flow and dynamic measurements. polymers consisted a polystyrene backbone grafted with fixed amount pendant N,N-dimethyl quaternary ammonium alkyl groups various lengths ranging from C12 up to C18. Upon increasing concentration, increase in size their branching results formation system spanning network through percolation process at...
We prepare industrially relevant magnetoresponsive thermoplastic nanocomposites capable of being cicatrized and smoothed after additive manufacturing through the application an oscillatory magnetic field (OMF). The materials are made isotactic polypropylene (iPP) matrix filled with magnetite nanoparticles (NPs; 2–22 wt %, 75 nm in diameter) synthesized from steel waste, providing them a limited ecological impact on top their ability to be repaired. NPs found have no significant thermal...