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Biobased, creep-resistant covalent adaptable networks based on β-amino ester chemistry Universiteit Gent
For this study, creep-resistant covalent adaptable networks were prepared by making use of the reversible beta-amino ester chemical platform and starting from biobased raw materials with an overall biobased carbon content of >90%. The investigated materials were synthesized with different cross-linking densities in a solvent-free fashion. The applied building blocks consisted of an easily obtained acrylate, based on a biobased diol, and a ...
Visible light-mediated chemistry of indoles and related heterocycles KU Leuven
The use of visible light and photoredox catalysis emerged as a powerful and sustainable tool for organic synthesis, showing the high value of distinctly different ways of bond creation. Indoles and related heterocycles are widely-present in natural products, biologically active compounds, drugs, and agrochemicals. This review summarises the impact of visible light-promoted chemistry on the functionalization of indoles and on the synthesis and ...
Suppressing the formation of $NO_{x}$ and $N_{2}O$in $CO_{2}/N_{2}$ dielectric barrier discharge plasma by adding $CH_{4}$: scavenger chemistry at work Universiteit Antwerpen
The need for carbon negative technologies led to the development of a wide array of novel CO2 conversion techniques. Most of them either rely on high temperatures or generate highly reactive O species, which can lead to the undesirable formation of NOx and N2O when the CO2 feeds contain N-2. Here, we show that, for plasma-based CO2 conversion, adding a hydrogen source, as a chemical oxygen scavenger, can suppress their formation, in situ. This ...
Synthesis of novel zwitterionic cellulose beads by oxidation and coupling chemistry in water KU Leuven
© 2016, Springer Science+Business Media Dordrecht. The design and synthesis of polysaccharide-based materials utilizing a systematic approach is essential to develop sustainable and biodegradable value added products. In this work, new zwitterionic cellulose beads of desired size range were prepared via spin drop atomization followed by sol gel transition technique. Carboxylic acid (COOH) and carbonyl (C=O) moieties were generated using ...
Potential and challenges of zeolite chemistry in the catalytic conversion of biomass KU Leuven
Increasing demand for sustainable chemicals and fuels has pushed academia and industry to search for alternative feedstocks replacing crude oil in traditional refineries. As a result, an immense academic attention has focused on the valorisation of biomass (components) and derived intermediates to generate valuable platform chemicals and fuels. Zeolite catalysis plays a distinct role in many of these biomass conversion routes. This contribution ...
Engineering Education through a Looking Glass and in Perspective : Towards a New Language, Conference paper, and oral presentation, International Conference on Engineering Education in Sustainable Development-EESD10, September 19–22, 2010, organised by Ch Vrije Universiteit Brussel
Engineering Education through a Looking Glass and in Perspective,
Towards a New Language
Engineering Education is becoming more and more competence based within a project oriented and problem based learning context. A holistic approach is becoming herewith clearly visible as a central pinpoint in the curriculum of the engineering sciences.
New education and learning tools are being implemented intensively and courses ...
Towards a New Language
Engineering Education is becoming more and more competence based within a project oriented and problem based learning context. A holistic approach is becoming herewith clearly visible as a central pinpoint in the curriculum of the engineering sciences.
New education and learning tools are being implemented intensively and courses ...
Molecular scale-driven upgrading of extrusion technology for sustainable polymer processing and recycling Universiteit Gent
Our polymer material and processing industry heavily relies on single- and twin-screw extrusion technology. To facilitate a circular economy technological upgrades, bridging experimental characterization techniques and the predictive power of modeling and software tools are although indispensable. The current work highlights engineering challenges and solution strategies to make (reactive) extrusion technology more sustainable and reliable. ...
A safe and sustainable bisphenol platform for high-performance thermoset materials. KU Leuven
The production of plastic, a polymeric material, has grown exponentially over the past 70 years. Due to its versatility, ranging from food packaging to more high-value applications such as biomedical materials, electronics, automotive or construction materials, plastic has become an essential part of our daily lives. However, despite being undoubtedly useful, the enormous production and usage of plastics has induced adverse climate, ...