The effect of [(η3-C3H5)(η5-C5H5)Mo(CO)2] on drying of solvent-borne alkyd paints

• Molybdenum-based catalyst was used as alkyd drier.
• Drying activity was established.
• Mechanism of drying process was studied by infrared spectroscopy.

Allyl molybdenum complex [(η3-C3H5)(η5-C5H5)Mo(CO)2] (Mo-A) was examined as a new drier for solvent-borne alkyd binder. The drying activity of pure Mo-A and the of combinations of Mo-A with cobalt(II) 2-ethylhexanoate (Co-Nuodex) was examined using standard methods for measurements of the drying time and hardness development of the alkyd film. The detailed study of the drying process was studied by time-resolved infrared spectroscopy on ethyl linoleate as well as on thin coating of alkyd binder.

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