1 The effect of factors on the process of obtaining phenol-cresol-formaldehyde resin (PhCR-F) has been studied. By using empirical evidence, the adequate experimental statistical-mathematical (ESM) model has been developed. Based on this model, the optimal values of the process factors for obtaining PhCR-F have been identified, bringing about both high yield and softening point of the resin. Data predicted on the basis of the ESM model were compared with empirical evidence about PhCR-F preparation.Анотація. Досліджено вплив чинників на перебіг процесу одержання феноло-крезоло-формальдегідної смоли (PhCR-F). З використанням практичних даних розроблено адекватну експериментально-статистичну математичну (ЕСМ) модель. На її основі встановлено оптимальні значення чинників процесу одержання PhCR-F, які забезпечують високі вихід і температуру розм'якшення смоли. Порівняно прогнозовані на основі ЕСМ та практичні дані процесу одержання PhCR-F.Ключові слова: феноло-крезоло-формальдегідна смола, оптимальні умови, експериментально-статистична математична модель, модифікатор, бітум.

Using light fraction of coal tar (5.75 wt % of coumarone and 44.45 wt % of indene), glycidyl methacrylate and styrene, the coumarone-indene resin with epoxy groups (CIRE) has been synthesized. Monoperoxy derivative of diglycidyl ether Bisphenol A (PO) was used as an initiator. The possible formation of CIRE has been studied on the model systems consisting of PO, glycidyl methacrylate, indene or coumarone, or styrene, or mixture of mentioned compounds. The synthesized product has been investigated as a polymer additive to bitumen-polymer blends (BPB). The effect of CIRE amount, temperature and time on the BPB operational characteristics has been examined. By means of IR-spectroscopy the structures of CIRE, bitumen and BPB were determined.

The road slow-setting monophase cationic bitumen emulsions have been prepared from bitumen modified by coumarone-indene resin with epoxy groups. Еmulsions were obtained using a colloid mill at the standard temperatures (413-423 K). The physicotechnical parameters of modified monophase emulsions have been established and the comparative analysis with the basе sample has been made.

1 The method for obtaining coumarone-indene resins with methacrylic fragments (CIRM) was developed with the addition of methyl methacrylate, using a light fraction of coal tar and its fraction boiling within 423-463 К. CIRM was obtained via radical cooligomerization using 2,2'-azobis (2-methyl-propionitrile) as the initiator. The effect of the initiator amount, temperature and reaction time on the yield, softening temperature and molecular weight of CIRM has been established. The structure of the synthesized CIRM has been confirmed by IR and NMR spectroscopy. It is proposed to use CIRM as a polymer component of bitumen-polymeric mixtures (BPS). The effect of CIRM amount, temperature and time on the main characteristics of BPS has been studied.

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