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

Abstract

New 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.