A5026342139- Catalysis for Biomass Conversion
- biodegradable polymer synthesis and properties
- Microplastics and Plastic Pollution
- Recycling and Waste Management Techniques
- Carbon dioxide utilization in catalysis
- Enzyme Catalysis and Immobilization
- Biofuel production and bioconversion
- Polymer crystallization and properties
- Chemical Synthesis and Reactions
- Catalysis and Hydrodesulfurization Studies
- Zeolite Catalysis and Synthesis
- Electrospun Nanofibers in Biomedical Applications
- Effects and risks of endocrine disrupting chemicals
- Free Radicals and Antioxidants
- Fuel Cells and Related Materials
- Microbial Metabolic Engineering and Bioproduction
- Carbohydrate Chemistry and Synthesis
- Supercapacitor Materials and Fabrication
- Process Optimization and Integration
- Membrane Separation and Gas Transport
- Fiber-reinforced polymer composites
Avantium (Netherlands)
2014-2024
University of Amsterdam
2020-2024
University of Groningen
2013-2014
To meet EU CO 2 emission targets, we need to replace most fossil-derived plastics with renewable alternatives. stop endless pollution by accumulating non degradable future be closed-loop recyclable and/or biodegradable.
Abstract 5‐Hydroxymethylfurfural (HMF) is considered an important building block for future bio‐based chemicals. Here, we present experimental study using different ketoses (fructose, sorbose, tagatose) and aldoses (glucose, mannose, galactose) under aqueous acidic conditions (65 g L −1 substrate, 100–160 °C, 33–300 m M H 2 SO 4 ) to gain insights into reaction pathways hexose dehydration HMF. Both rates HMF selectivities were significantly higher than aldoses, which in line with literature....
Plastic materials are indispensable in everyday life because of their versatility, high durability, lightness and cost-effectiveness. As a consequence, worldwide plastic consumption will continue to grow from around 350 million metric tons per annum today an estimated 1 billion 2050. For applications where polymers applied the environment or for have bigger chance ending up environment, (bio)degradable need be developed stop endless accumulation non-degradable irreversibly littering our...
The combination of the predicted polymer market growth and emergence renewable feedstocks creates a fantastic opportunity for sustainable polymers. To replace fossil-based feedstock, there are only three alternative carbon sources: biomass, CO2, existing plastics (via mechanical and/or chemical recycling). ultimate circular feedstock would be CO2: it can electrochemically reduced to formic acid derivatives that subsequently converted into useful monomers such as glycolic acid. This work is...
Abstract Shifting away from fossil- to biobased feedstocks is an important step towards a more sustainable materials sector. Isosorbide rigid, glucose-derived secondary diol, which has been shown impart favourable material properties, but its low reactivity hampered use in polyester synthesis. Here we report simple, yet innovative, synthesis strategy overcome the inherently of diols It enables fully polyesters diols, such as poly(isosorbide succinate), with very high molecular weights (M n...
To reduce the global CO2 footprint of plastics, bio- and CO2-based feedstock are considered most important design features for plastics. Oxalic acid from isosorbide biomass interesting rigid building blocks high Tg polyesters. The biodegradability a family novel fully renewable (bio- CO2-based) poly(isosorbide-co-diol) oxalate (PISOX-diol) copolyesters was studied. We systematically investigated effects composition on biodegradation at ambient temperature in soil PISOX (co)polyesters....
Plastic materials play a pivotal role in modern society. Finding sustainable alternatives to established fossil-based polymers is an important part of the effort reduce environmental impact sector. 1,4:3,6-dianhydrohexitols (isosorbide, isomannide and isoidide) are group biobased diol monomers that promising for synthesis polyesters. Their rigid molecular structure imparts favorable material properties polymers. Isosorbide especially interesting due its current commercial availability from...
An effective 3-step method for the quantification of mass polyethylene terephthalate microplastics and nanoplastics (PET MNPs) in complex environmental matrices was developed based on a simplified in-matrix depolymerization. Liquid chromatography (LC) coupled with ultraviolet (UV) detection used quantification. Recoveries PET-spiked sand samples were 99 ± 2% (1 mg/L) 93 7% (30 mg/L). The limit (LOQ) PET 0.4 μg/g sand, 1 mg/g indoor dust 0.2 wet sludge. This applied to seven beach samples, 20...
In order to reduce the plastic accumulation in environment, biodegradable plastics are attracting interest market. However, low thermal stability of most amorphous polymers limits their application. With aim combining high glass transition temperature (Tg), with good (marine) biodegradation a family novel fully renewable poly(isosorbide-co-diol) oxalate (PISOX-diol) copolyesters was recently developed. this study, biodegradability representative copolyester,...
Concerns about impact of small plastic particles, known as microplastics (<5 mm) and nanoplastics (<1 μm), together abbreviated MNP, on the environment human health have increased in recent years. Polyethylene terephthalate (PET) been detected previously different environmental samples including freshwater wastewater sludge. In present study, we target all particles PET with a diameter smaller than 5 mm ('PET MNP'). A simple three-step method drying, (in matrix) depolymerization ethylene...
Oxalate esters and isosorbide serve as intriguing polymer building blocks, they can be sourced from renewable resources, such CO2 glucose, the resulting polyesters offer outstanding material properties. However, low reactivity of secondary hydroxyl groups makes it difficult to generate high-molecular-weight polymers isosorbide. Combining diaryl oxalates with appears a promising approach produce isosorbide-based polyoxalates (PISOX). This strategy seems scalable, has short polymerization time...
The one-pot catalytic reductive etherification of furfural to 2-methoxymethylfuran (furfuryl methyl ether, FME), a valuable bio-based chemical or fuel, is reported. A large number commercially available hydrogenation heterogeneous catalysts based on nickel, copper, cobalt, iridium, palladium and platinum various support were evaluated by high-throughput screening approach. reaction was carried out in liquid phase with 10% w/w methanol solution at 50 bar hydrogen. Among all the samples...
The solubilities of d-glucose, d-arabinose, d-xylose, d-fructose, d-mannose, and sucrose in methanol methanol–water mixtures (<25 wt % water) were determined at temperatures between 295 353 K using a unique high-throughput screening technique. data modeled with UNIQUAC framework an average error calculated experimental 3.7%. results provide input for the design efficient chemical processes conversion these sugars into valuable biobased building blocks mixtures.
Abstract The acid‐catalysed dehydration of the four 2‐ketohexoses (fructose, sorbose, tagatose and psicose) to furanics was studied in methanol (65 g L −1 substrate concentration, 17 34 m sulfuric acid, 100 °C) with Avantium high‐throughput technology. Significant differences reactivities hexoses yields 5‐hydroxymethylfurfural (HMF) its methyl ether (MMF) were observed. Psicose most reactive, psicose also afforded highest combined yield MMF HMF approximately 55 % at 96 sugar conversion....
The predicted growth in plastic demand and the targets for global CO2 emission reductions require a transition to replace fossil-based feedstock polymers close- loop recyclable, some cases to, biodegradable polymers. crisis terms of littering will furthermore force towards materials that not linger nature but degrade over time case they inadvertently end up nature. Efficient systems studying polymer (bio)degradation are therefore required. In this research, Respicond parallel respirometer...
High boiling point phenolic reactive solvents like p-cresol could play a key role in improving the synthesis of aromatic polyesters with high content secondary diols such as isosorbide. Previously, our group showed that this method significantly improves poly(isosorbide succinate). In work, terephthalic acid and 2,5-furandicarboxylic were used building blocks for Tg isosorbide (>30 mol% diols) molecular weight (Mn > 24 kg mol-1). A number non-reactive tested results clearly to significant...
Renewable polyesters with a good balance between impact strength and elastic modulus (stiffness) are not very common, especially when combined high glass transition temperature (
Plastic material performance is strongly correlated to the polymer's molecular weight. Obtaining a sufficiently high weight therefore key goal of polymerization processes. The most important polyester polyethylene terephthalate (PET) and new furanoate (PEF) require metal catalysts time-consuming production processes reach weights. Metal catalysts, which are typically antimony or tin for polyesters, end up in plastic products may result sustainability ecological challenges. When less reactive...
This study explores the synthesis and performance of novel copolyesters containing 2,3-butanediol (2,3-BDO) as a biobased secondary diol. presents an opportunity for improving their thermal properties reducing crystallinity, while also being more sustainable. It is, however, challenge to synthesize sufficient molecular weight that have high 2,3-BDO content, due reduced reactivity diols compared primary diols. Terephthalate-based polyesters were synthesized in combination with different...