Publicaties
Features on the development and stability of phase morphology in complex multicomponent polymeric systems: Main focus on processing aspects KU Leuven
© 2016 John Wiley & Sons, Inc. The present chapter discusses crucial aspects of the phase morphologies developed in polymer-based multicomponent systems. Focus is on complex phase morphology as the co-continuous one in binary and ternary thermoplastic blends both uncompatible and reactively compatibilized. Away from reviewing all the work reported in literature, some important and recent developments on the effects of the processing ...
Crystallization, micro- and nano-structure, and melting behavior of polymer blends KU Leuven
© Springer Science+Business Media Dordrecht 2014. All rights reserved. When the melt of a crystalline polymer is cooled to a temperature between the glass transition and the equilibrium melting point, the thermodynamic requirement for crystallization is fulfilled. In a crystallizable miscible blend, however, the presence of an amorphous component, either thermoplastic or thermosetting, can either increase or decrease the tendency to crystallize ...
Treatment of water-induced curvature of the DSC heat flow rate signal Applied to fractionated nucleation of polypropylene dispersed in water KU Leuven
In samples containing a volatile phase, quite often the evaporation of the volatile substance during heating causes appreciable curvature of the DSC heat flow rate signal as function of temperature, making it difficult to quantify thermal transitions and reorganization phenomena occurring in the same temperature range. This is the case for e.g. polyamide-water, polyamide-alcohol, and polypropylene-water systems, thus complicating the study of ...
Quantitative evaluation of fractionated and homogeneous nucleation of polydisperse distributions of water-dispersed maleic anhydride-grafted-polypropylene micro- and nano-sized droplets KU Leuven
The nucleation processes in waterborne Maleic Anhydride-grafted-Polypropylene micro- and nano-droplet suspensions have been studied. Compared to a previous report on this topic, an extended set of samples in combination with improved particle size distribution data of the samples have been used, which are both essential for the advancement of the analysis. Self-nucleation was utilized to ensure that the observed lowered fractionated ...
Influence of compatibilizer precursor structure on the phase distribution of low density poly(ethylene) in a poly(ethylene terephthalate) matrix KU Leuven
In attempt to enhance the compatibility of PET/LDPE blends by using a proper functionalized polymer as third component, diethyl maleate (DEM)-functionalized ultralow density poly(ethylene) (ULDPE-g-DEM) and styrene-/j-(ethylene-co-1 -butene)-b-styrene triblock copolymer (SEBS-g-DEM) were prepared by radical functionalization in the melt. Immiscible PET/LDPE blends having compositions of 70/30 and 80/20 by weight were then extruded in the ...
Features, questions and future challenges in layered silicates clay nanocomposites with semicrystalline polymer matrices KU Leuven
The present features review article discusses the crystallisation of the polymer matrix when containing silicate layers. The accent is put on nylons (polyamides) and polyethylene oxide) as typical hydrophilic polymers and, poly(propylene) from the hydrophobic group. The effects of the clay, either intercalated or exfoliated, on the crystallisation behaviour of the matrix are highlighted. In addition, the crucial aspects of the semicrystalline ...