Synthesis and properties of model humic substances derived from ellagic ACID.

Анотація

Humic substances are dark brown natural organic compounds, widely distributed in various natural objects: in soils and peat, in coal and shale, in marine and lake sediments, in the waters of rivers and lakes. The growing interest to humic substances is driven by their valuable physico-chemical and therapeutic properties. However, humic substances extracted from natural sources are characterized by heterogeneity, polydispersity, dependence of properties on the source and the method of their extraction, which significantly limits their use. Synthetic polymer products, with properties that simulate natural humic substances, have significant advantages over natural materials, which is due to controlled and reproducible properties. In particular, the possibility of selecting a phenolic precursor, varying and controlling the synthesis conditions allows solving the problem of standardization of the properties of natural humic substances. However, despite almost a century of research, few synthetic humic substances models have been developed. Therefore, the urgent task is to improve the existing and develop new methods of obtaining synthetic humic substances.