INFRARED SPECTROSCOPIC ANALYSIS OF THE SYNTHESIZED ORGANOSILICON OLIGOMER
Keywords:
phenol–formaldehyde resin, organosilicon oligomer, infrared spectroscopy, Si–O–Si, siloxane, functional groups, hybrid polymer.Abstract
This work presents the results of infrared (IR) spectroscopic analysis of an organosilicon oligomer synthesized on the basis of phenol–formaldehyde resin. The IR spectra revealed characteristic absorption bands corresponding to both organic and inorganic structural fragments. The phenolic component was identified by broad O–H stretching vibrations (3200–3550 cm⁻¹), aromatic C=C skeletal vibrations (1500–1600 cm⁻¹), and C–H stretching vibrations (2800–3000 cm⁻¹). The organosilicon segment was confirmed by strong Si–O–Si asymmetric stretching vibrations (1000–1100 cm⁻¹) and Si–C stretching bands (800–850 cm⁻¹). The reduction in O–H band intensity and the emergence of siloxane-related peaks indicated the successful integration of siloxane units into the phenolic network, forming a hybrid organic–inorganic structure. The results confirm the efficiency of the chosen synthesis route and provide a basis for further optimization and application in thermally stable and chemically resistant materials.
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