A5004344515- biodegradable polymer synthesis and properties
- Polymer crystallization and properties
- Epoxy Resin Curing Processes
- Polymer Nanocomposites and Properties
- Polymer Foaming and Composites
- Additive Manufacturing and 3D Printing Technologies
- Rheology and Fluid Dynamics Studies
- Injection Molding Process and Properties
- Synthesis and properties of polymers
- Carbon dioxide utilization in catalysis
- Natural Fiber Reinforced Composites
- Fiber-reinforced polymer composites
- Dielectric materials and actuators
- Advanced Sensor and Energy Harvesting Materials
- Material Properties and Processing
- Silicone and Siloxane Chemistry
- Bone Tissue Engineering Materials
- Mechanical Behavior of Composites
- Microplastics and Plastic Pollution
- Photopolymerization techniques and applications
- Nanocomposite Films for Food Packaging
- Advanced Cellulose Research Studies
- Textile materials and evaluations
- Advanced Polymer Synthesis and Characterization
- Polymer composites and self-healing
Université Claude Bernard Lyon 1
2016-2025
Centre National de la Recherche Scientifique
2016-2025
Institut National des Sciences Appliquées de Lyon
2016-2025
Université Jean Monnet
2022-2025
Hassan II Academy of Science and Technology
2015-2024
Ingenierie des Materiaux polymeres
2007-2022
Albert Einstein College of Medicine
2021
Université Laval
2008
Innovation Plasturgie Composites
2005
École Normale Supérieure - PSL
2004
The blown extrusion of poly(lactic acid) (PLA) presents several challenges mainly due to the poor shear and elongation properties this biopolymer. This article highlights some promising routes enhance processability PLA for extrusion. To achieve objective, various formulations with multifunctionalized epoxy, nucleating agents, plasticizer were elaborated studied on basis their linear viscoelasticity elongational properties. We further characterized both structure thermomechanical films...
The objective of this study was to gain a deep understanding composition and compatibilization effects on the properties entirely sustainably sourced polymer blends based polylactide (PLA) polyamide 11 (PA11). Generally, PLA cannot challenge regular commodity polymers due its weak thermo-mechanical poor elongation properties. With work, however, we present promising route overcome these drawbacks in order enhance processability PLA: blending with various compositions other ductile...
Interfacial rheology is crucial in dictating morphology and ultimate properties of particle-stabilized polymer blends, but challenging to be determined. In this study, a fully polymeric dumbbell-shaped Janus nanoparticle (JNP) polymethyl methacrylate (PMMA) polystyrene (PS) spheres with equal sizes (∼80 nm) was prepared used as an efficient compatibilizer for PMMA/PS blends. The JNPs were preferentially localized at the interface, thereby reducing interfacial tension refining both...
This study was dedicated to the blown film extrusion of poly(lactic acid), which mainly presents poor shear and elongation viscosities, its blends. In order enhance melt strength, two main routes were selected (i) a structural modification through chain extension branching mechanisms by adding reactive multifunctional epoxide (named Joncryl) (ii) blending with poly(butylene adipate-co-terephtalate), named PBAT in presence (or not) Joncryl. The effects agent on rheology, morphological,...
Abstract Virgin and organoclay modified polycarbonate (PC)/poly(methyl methacrylate) (PMMA) (30/70 w/w) blends were prepared by melt‐mixing of PC, PMMA, organically montmorillonite (OMMT). The morphology OMMT PC/PMMA blend with two different weight percents was studied using scanning electron microscopy, transmission microscopy (TEM), X‐ray diffraction (XRD). size the phase‐separated domains decreased dramatically increasing content OMMT. XRD patterns TEM observations revealed that silicate...
To better understand the processing and final properties of multilayer films obtained by layer forced assembly in coextrusion as well their structure morphology, present study focuses on model with LDPE base polymer. More specifically, confinement a glassy amorphous polymer (here, PC or PS) was investigated. First, viscosity elasticity ratios different neat polymers were measured rheological tests to simulate conditions feedblock multipliers during coextrusion. These results together...
In this work, a novel and pioneering route was developed for the large-scale fabrication of PLA-based multilayer films with high barrier properties by forced assembly layer multiplication coextrusion. The process involved coextruding cellulose nanocrystal (CNC)-filled polylactide (PLA) biocomposite, obtained liquid feeding method, highly crystalline poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) into alternating structures number layers up to 513. degree CNC dispersion in PLA/CNC-based...
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...
It is known that the macroscopic properties of multilayer polymer films are largely dominated by diffuse interphase formed via interfacial diffusion between neighboring layers. However, not much about origin this effect. In work, we reveal role and development in films, based on a compatible poly(vinylidene fluoride)/poly(methyl methacrylate) system fabricated forced-assembly micro-/nanolayer coextrusion. Interestingly, layer morphology found to prevail all investigated even for nanolayered...
Physical and thermomechanical properties of BDMA-catalyzed DGEBA/Dicy epoxy toughened with core-shell particles were studied. Relationships between these the level toughening are reported. The blends have been made in well-defined processing conditions. In fact, resulting depend on state dispersion prepolymer matrix before crosslinking cure schedule. considered two types: i) poly(butadiene-co-styrene) core/carboxy-functionalized poly(methyl methacrylate-co-styrene) shell. Such dispersed at...
This communication describes the preparation, characterization and properties of biodegradable poly(butylene succinate) (PBS)/multi-walled carbon nanotubes (MWCNTs) nanocomposite. Nanocomposite was prepared by melt-blending in a batch mixer amount MWCNTs loading 3 wt%. State dispersion-distribution PBS matrix examined scanning transmission electron microscopic observations that revealed homogeneous distribution stacked matrix. The investigation thermomechanical behavior performed dynamic...
Abstract The composition of Rhassoul clay is controversial regarding the nature pure-mineral fraction which claimed to be stevensite rather than saponite. In this study, raw and mineral fractions were characterized using various techniques including Fourier transform infrared spectroscopy magic angle spinning nuclear magnetic resonance (MAS NMR). isolated fine contained a larger amount Al (>1 wt.%) that reported for other occurrences. 27 MAS NMR technique confirmed in equally split...