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A promising drying activity of environmentally friendly oxovanadium(IV) complexes in air-drying paints

Autoři: Preininger Ondřej | Vinklárek Jaromír | Honzíček Jan | Mikysek Tomáš | Erben Milan

Rok: 2015

Druh publikace: článek v odborném periodiku

Název zdroje: Progress in Organic Coatings

Strana od-do: 191-198

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Sikativační aktivita oxovanadičitých komplexů pro alkydové nátěrové hmoty	Oxovanadičité sloučeniny, [VO(O,O-(RCOCHCOR2)-C-1)(2)] (R-1 = R-2 = Me; R-1 = Me, R-2 = Ph; R-1 = R-2 = Ph), jsou nové ekologicky přijatelné sikativy alkydových pojiv. Provedené experimenty dokazují, že jejich katalytická aktivita je, v určitých parametrech, mnohem vyšší než u komerčního kobaltnatého sikativu (Co-Nuodex).	vanad; alkyd; sikativ; infračervená spektroskopie; EPR spektroskopie
eng	A promising drying activity of environmentally friendly oxovanadium(IV) complexes in air-drying paints	Oxovanadium(IV) compounds, [VO(O,O-(RCOCHCOR2)-C-1)(2)] (R-1 = R-2 = Me; R-1 = Me, R-2 = Ph; R-1 = R-2 = Ph), were established as a new class of environmentally friendly primary driers for solvent-borne alkyd binder. The performed experiments clearly show that the catalytic activity of oxovanadium compounds is, in some terms, considerably higher than observed for commercial cobalt-based drier (Co-Nuodex). The detailed study of the drying process reveals several differences in mechanism of autoxidation. The enhanced activity at low concentrations together with very low overall toxicity imply the oxovanadium compounds as promising catalysts of autoxidation reactions implying a great perspective in paint-producing industry.	Vanadium compounds; Alkyd autoxidation; Drier; Infrared spectroscopy; EPR spectroscopy