Benzyl substituted oxidovanadium(IV) pentane-2,4-dionates: Synthesis, structure and drying properties

Publication date: Available online 19 April 2019Source: Inorganica Chimica ActaAuthor(s): Iva Charamzová, Aneta Machálková, Jaromír Vinklárek, Ivana Císařová, Jan HonzíčekAbstractNew catalysts improving drying of alkyd resins were synthetized and characterized by infrared spectroscopy and electron paramagnetic resonance. Their structure was determined by X-ray structure analysis. The catalytic performance of these oxidovanadium(IV) pentane-2,4-dionate complexes bearing benzyl substituents were studied on four different alkyd resins modified with soybean oil. Results obtained from standard mechanical tests revealed high acceleration of autoxidation process resulting in short total dry times. Evaluation of cured films by electron paramagnetic resonance enabled to follow the active oxidovanadium species, which is generated upon drying process.Graphical abstractOxidovanadium(IV) pentane-2,4-dionates bearing benzyl substituents were synthetized and characterized by spectroscopic methods and X-ray diffraction analysis. Their catalytic performance was studied on four different alkyd resins modified with soybean oil.

Source: Inorganica Chimica Acta - April 20, 2019 Category: Chemistry Source Type: research