INVESTIGATION OF THE CHEMICAL REACTION BETWEEN CELLULOSE NANOCRYSTALS AND FUNCTIONAL ACRYLIC MONOMERS, AND STUDY OF THEIR PHYSICOCHEMICAL PROPERTIES
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Abstract
This study investigates the chemical reaction between cellulose nanocrystals (CNCs) and the functional acrylate monomer 2-carboxyethyl acrylate (2-CEA), together with a comprehensive evaluation of the morphological, structural, and thermal properties of the resulting product. The reaction was carried out at 60–70 °C in the presence of potassium persulfate (KPS) as an initiator. The obtained product was characterized using scanning electron microscopy (SEM), infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential thermogravimetric analysis (DTG). SEM analysis revealed a change in the initial rod-like morphology of the cellulose nanocrystals, accompanied by increased particle aggregation and the formation of a denser structure. FTIR analysis showed characteristic absorption bands at 1732, 1545, 2922, and 2853 cm⁻¹, confirming the interaction of 2-CEA fragments with the cellulose nanocrystals. According to the DTG results, the maximum thermal decomposition temperature increased from 360 to 385 °C, while the TGA results showed an increase in residual mass at 600 °C from 11.8% to 21.2%. The results demonstrate improved thermal stability and physicochemical properties of the modified material. The synthesized product can be considered a promising basis for developing functional nanomaterials and high-performance adhesive composites.
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