Matušková Eliška, Honzíček Jan
Institute of Chemistry and Technology of Macromolecular Materials, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic.
Materials (Basel). 2020 Feb 1;13(3):642. doi: 10.3390/ma13030642.
This paper reports a strong drying activity of manganese(III) acetylacetonate. It is documented on several solvent-borne and high-solid alkyd binders. Solubility problems, which often appear upon application of new primary driers, were overcome by use of dimethyl sulfoxide. Interestingly, intense coloration of the drier does not influence the transparent paint films due to in situ reduction to manganese(II) as evidenced by colorimetric measurements. Kinetics of the autoxidation process was investigated by infrared and Raman spectroscopy. For selected formulation, the effect of film thickness on through drying was estimated by infrared spectroscopy using attenuated total reflection sampling technique.
本文报道了乙酰丙酮锰(III)具有很强的干燥活性。这在几种溶剂型和高固体分醇酸树脂粘合剂上得到了证明。使用二甲基亚砜克服了新的主催干剂应用时经常出现的溶解性问题。有趣的是，催干剂的强烈着色并不影响透明漆膜，因为比色测量证明其原位还原为锰(II)。通过红外光谱和拉曼光谱研究了自氧化过程的动力学。对于选定的配方，使用衰减全反射采样技术通过红外光谱估计了膜厚度对彻底干燥的影响。
