A5041200503- Advanced Cellulose Research Studies
- biodegradable polymer synthesis and properties
- Lignin and Wood Chemistry
- Nanocomposite Films for Food Packaging
- Polysaccharides and Plant Cell Walls
- Supercapacitor Materials and Fabrication
- Membrane Separation Technologies
- Electrospun Nanofibers in Biomedical Applications
- Catalysis for Biomass Conversion
- Conducting polymers and applications
- Microplastics and Plastic Pollution
- Nanomaterials for catalytic reactions
- Graphene research and applications
- Advanced Sensor and Energy Harvesting Materials
- Natural Fiber Reinforced Composites
- Fuel Cells and Related Materials
- Electrohydrodynamics and Fluid Dynamics
- Algal biology and biofuel production
- Membrane Separation and Gas Transport
- Molecular Junctions and Nanostructures
- Minerals Flotation and Separation Techniques
- Recycling and Waste Management Techniques
- Enzyme-mediated dye degradation
- TiO2 Photocatalysis and Solar Cells
- Biofuel production and bioconversion
KU Leuven
2016-2025
Material (Belgium)
2025
University College West Flanders
2014-2024
VIB-KU Leuven Center for Microbiology
2023
JK Research (United States)
2014-2021
Institute of Chemical Engineering
2020
Research Institute for Chromatography
2019
Graz University of Technology
2017
University of Nottingham
2007-2016
Centexbel
2014
This review takes an in-depth look at the chemical modifications that have been carried out on nanocrystalline cellulose.
This paper reports the synthesis of cellulose nanocrystals grafted by polystyrene chains via surface-initiated ATRP. Naturally occurring was first hydrolyzed to obtain nanocrystals. Their surface then chemically modified using 2-bromoisobutyryl bromide introduce initiating sites for A varying extent modification achieved changing reaction conditions. Further initiation styrene polymerization from these with a CuBr/PMDETA (N,N,N′,N′,N′′-pentamethyldiethylenetriamine) catalytic system and in...
Aerogels were prepared through the self-assembly of cellulose nanowhiskers in a benign manner. Preparation these aerogels only requires sonication water to form hydrogel, solvent exchange with ethanol and supercritical CO2 drying. varying nanowhisker content characterised X-ray diffraction, BET analysis electron microscopy. Their density porosity varied linearly concentrations initial hydrogel confirmed that gel shrinkage upon drying was limited to, on average, 6.5%. We achieved densities...
Over the past 10 years, grafting of polymers from surface cellulose nanocrystals (CNCs) has gained substantial interest in both academia and industry due to rapidly growing number potential applications surface-modified CNCs, which range building blocks nanocomposites responsive nanomaterials antimicrobial agents. CNCs are rod-like nanoparticles that can be isolated renewable biosources exhibit high crystallinity, tunable aspect ratio, stiffness, strength. Upon drying, abundance hydroxyl...
Kraft lignins from hardwood and softwood were esterified with several anhydrides to alter their solubility behavior in nonpolar solvents, such as styrene-containing thermoset resins. The esterification reaction was facile, it reduced the amount of waste products, can be readily scaled up. Increasing carbon chain length on ester group improved kraft lignin butyrated being completely soluble styrene. Esterification unsaturated groups methacrylic anhydride, a lesser extent than saturated...
Abstract Some exploratory work was done to look at novel applications, such as filler use and comonomers, for lignin in thermosetting unsaturated polyesters vinyl esters. The solubility of different lignins (pine kraft, hardwood, ethoxylated, maleinated) determined resin systems (acrylated epoxidized soybean oil, hydroxylated soy oil monoglyceride, a commercial ester) give an idea the compatibility with that were used. Further, studied. An increase glass‐transition temperature noticed,...
Cellulose nanocrystals were converted into ratiometric pH-sensing nanoparticles by dual fluorescent labelling employing a facile one-pot procedure. A simple and versatile three-step procedure was also demonstrated extending the number of fluorophores available for grafting. In this method an amine group introduced via esterification followed thiol-ene click reaction.
Nanoscale monocrystalline starch particles were successfully modified using stearic acid chloride and poly(ethylene glycol) methyl ether. Surface modification was confirmed FTIR, XPS spectroscopy, contact angle measurements. X-ray diffraction DSC analysis that there no alteration of the crystalline structure due to surface modification. The grafts at also found crystallize on surface. TEM showed individualization nanoparticles as a result reduction polar hydrogen bonding forces. These...
Monocrystalline starch nanoparticles were successfully grafted with poly(tetrahydrofuran), poly(caprolactone), and poly(ethylene glycol) monobutyl ether chains using toluene 2,4-diisocyanate as a linking agent. Surface grafting was confirmed Fourier transform infrared X-ray photoelectron spectroscopies, differential scanning calorimetry, elemental analysis, contact angle measurements. Transmission electron microscopy observations of modified nanocrystals showed either the individualization...
An imidazolium salt was grafted to cellulose nanocrystals (also called nanowhiskers) using copper(I) catalysed azide–alkyne cycloaddition and the bromide anion successfully exchanged for bistriflimide an anionic dye, providing opportunity synthesize a wide variety of ion exchange systems or catalysts as support medium.
Palladium nanoparticles (PdNPs) supported on cellulose nanocrystals (CNXL) were synthesized in a single step from Pd(hexafluoroacetylacetonate)2 (Pd(hfac)2) subcritical and supercritical carbon dioxide. CNXLs acted as both the reducing agent support material for obtained nanoparticles. Dry Pd (PdNP@CNXL) by simply venting CO2 characterized FT-IR, X-ray photoelectron spectroscopy (XPS), powder diffraction (XRD), thermogravimetric analysis (TGA), transmission electron microscopy (TEM). The...
Latex/starch nanocrystal (SNC) nanocomposite dispersions were successfully synthesized via a one-step surfactant-free Pickering emulsion polymerization route using SNC as the sole stabilizer. The effect of content, initiator type and comonomer on particle size, colloidal stability, film properties investigated. Both HCl H2SO4-hydrolysed starch nanocrystals, each bearing different surface charges, used stabilizing nanoparticles. SNCs from hydrolysis found to provide better stabilization...