A5088609502- biodegradable polymer synthesis and properties
- Carbon dioxide utilization in catalysis
- Additive Manufacturing and 3D Printing Technologies
- Epoxy Resin Curing Processes
- Polymer crystallization and properties
- Mechanical Behavior of Composites
- Polymer composites and self-healing
- Microplastics and Plastic Pollution
- Innovations in Concrete and Construction Materials
- Synthesis and properties of polymers
- Polymer Foaming and Composites
- Photopolymerization techniques and applications
- Advanced Sensor and Energy Harvesting Materials
Luxembourg Institute of Science and Technology
2019-2024
École Nationale Supérieure des Mines de Paris
2009
Nonisocyanate polyurethanes (NIPUs) are broadly investigated as a potential replacement for conventional (PUs) to eliminate the use of toxic isocyanates and reduce occupational hazards. One most popular approaches NIPU synthesis is polyaddition cyclic bis(carbonate)s diamines form poly(hydroxyurethane)s (PHUs). However, such PHUs highly hydrophilic due presence two hydroxyl groups per repeat unit, resulting moisture absorption significantly degrades their thermomechanical performance...
This work presents, for the first time, a detailed report on how nucleation and crystallization of polylactide (PLLA) are affected by biobased aliphatic polyesters plasticizers. Three were synthesized via solvent-free two-stage melt polycondensation adipic acid (AdA) with three different diols used as plasticizers poly (L-lactic acid) (PLLA). The molecular structure was proved using 1H NMR, 13C NMR Fourier transform infrared (FTIR) spectroscopy. PLLA/AdA-based blends containing 10 wt%...
Polylactide (PLA) was blended by conventional and reactive extrusion with limonene (LM) or myrcene (My) as bio-based plasticizers. As-processed blends were carefully analyzed a multiscale multidisciplinary approach to tentatively determine their chemical structure, microstructure, thermal properties, tensile impact behaviors, hydrothermal stability. The main results indicated that LM My efficient plasticizers for PLA, since compared neat the glass transition temperature reduced, ultimate...
Polyurethanes (PUs) are common commodity plastics that cover a wide range of applications. However, PUs based on isocyanates, the toxic compounds pose respiratory and dermal hazards. As more sustainable alternative, polyhydroxyurethanes (PHUs) have gained attention as PU substitutes. Nevertheless, their utility is often limited by low molecular weights inferior properties. To overcome these shortcomings, present study focuses application reactive extrusion (REx) to synthesis thermoplastic...
Joining of dissimilar thermoplastics and their composites is a challenge for thermal welding techniques due to different melting points. Reactive with an auxiliary functional material can offer the clear opportunities develop joining processes robustness thermoplastic polymers composites. The current study employed reactive compatibilization possibility acrylic-based glass fiber composite polyamide (PA)-12 by applying hot-tool technique. For this purpose, plates are fabricated typical vacuum...
The melt strength of Elium® acrylic resin is an important factor to ensure limited fluid flow during welding. To provide with a suitable via slight crosslink, this study examines the effect two dimethacrylates, namely butanediol-di-methacrylate (BDDMA) and tricyclo-decane-dimethanol-di-methacrylate (TCDDMDA), on weldability acrylic-based glass fibre composites. system impregnating five-layer woven preform mixture resin, initiator, each multifunctional methacrylate monomers in range 0 2 parts...
Crystallization kinetics of various blends poly(lactic acid) (PLA)/polyolefin elastomer (POE) was studied through nonisothermal experimental investigations and theoretical approaches. The PLA/POE were prepared in a melt mixing process by using two types POEs compatibilizers. rubber phases used adopted on the basis polyethylene (PE) polypropylene (PP) type olefin elastomers. effects kinds compatibilizers containing ethylene vinyl acetate copolymer (EVA) acrylic ester-glycidyl methacrylate...