Authors Nagel, J. ; Zimmermann, P. ; Schubert, O. ; Simon, F. ; Schlenstedt, K.
Title Coupling of carboxylic groups onto the surface of polystyrene parts during fabrication by fused filament fabrication
Date 15.11.2017
Number 52902
Abstract A method for the fabrication of polystyrene parts, modified with carboxylic groups during Fused Filament Fabrication (FFF), is being introduced. This method is based on the application of a thin layer of a reactive polymer carrying carboxylic groups on a substrate surface. A polystyrene film is printed on top of this layer. During contact between the hot melt and the reactive layer, a Friedel-Crafts type acylation using a green catalyst takes place, which attaches the reactive polymer to the polystyrene surface. The modified surface is homogeneous, hydrophilic and able to bind copper ions. The method could be used to fabricate unique parts of polystyrene with tailored surface functionalisation. It could be applied for laboratory use, e.g. for the manufacture of lab-on-a-chip devices.
Publisher Applied Surface Science
Citation Applied Surface Science 422 (2017) 28-31
Tags additive manufacturing surfaces reactive processing

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