Publications
Development of tuneable polyamine top layer for nanofiltration with high stability in bleach and at extreme pHs KU Leuven
State-of-the-art membranes for nanofiltration are thin film composite membranes, comprising of a thin top layer on top of a porous support. Many separation processes in organic chemistry involve extreme conditions, e.g. aggressive solvents, solvent-water mixtures or extreme pH, e.g. in acid mine drainage or in Cleaningin-Place cycles. However, the most commonly used thin film composite membranes are polyamides, typically prepared by reaction of ...
Copper-cobalt double metal cyanides as green catalysts for phosphoramidate synthesis KU Leuven
Phosphoramidates are common and widespread backbones of a great variety of fine chemicals, pharmaceuticals, additives and natural products. Conventional approaches to their synthesis make use of toxic chlorinated reagents and intermediates, which are sought to be avoided at an industrial scale. Here we report the coupling of phosphites and amines promoted by a Cu3[Co(CN)6]2-based double metal cyanide heterogeneous catalyst using I2 as additive ...
The expression of chirality in linked poly(thiophene)s KU Leuven
Conjugated polymers have demonstrated to express chirality, for instance, by strong circular dichroism (CD). However, the shape and intensity of the spectra can be quite different and are very difficult to predict. Molecular irregularity, star-shapes, and linking polymers have demonstrated to affect the CD, often in a positive way. In this research, we design two different chiral arms, in which the molecular irregularity results in a ...
Influence of the dispersity and molar mass distribution of conjugated polymers on the aggregation type and subsequent chiral expression KU Leuven
This study aims to determine the influence of the dispersity on the aggregation of conjugated polymers and their subsequent chiral expression. Dispersity has been thoroughly investigated for industrial polymerizations, but research on conjugated polymers is lacking. Nonetheless, knowledge thereof is crucial for controlling the aggregation type (type I versus type II) and its influence is therefore investigated. For that purpose, a series of ...