інфрачервона спектроскопія

The article presents results of the study of soybean and rapeseed vegetable oils’ qualitative composition dependence on the degree of raw materials grinding obtained by extraction in a stationary layer in a Soxhlet apparatus using methylene chloride as a solvent. A number of experiments were performed to determine the optical properties of oil by infrared spectroscopy. The absorption spectra for different oil samples are present in the article. The obtained results were compared with previous refractometric and UV-Vis spectroscopy studies.

Coumarone-indene resins with epoxy groups (CIRE) have been obtained using light fraction of coal tar or fraction with the distillation range of 423–463 K based on it. Styrene and glycidyl methacrylate were used as modifiers. CIRE were synthesized via radical cooligomerization using monoperoxide derivative of dioxyphenylpropane diglycidyl ether (PO) as an initiator. Thermal stability of PO has been studied. The effect of initiator amount, reaction temperature and time on the yield and softening temperature of CIRE has been determined.