EVALUATION OF COMPOSITIONAL STRUCTURAL CHANGES IN TERPOLYMERIZATION OF A TERNARY SYSTEM BASED ON EXPERIMENTAL DATA AND KINETIC MODELING
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This study investigates the kinetics of terpolymerization and structural changes in the TDMA–styrene–maleic anhydride system based on experimental data and kinetic modeling. Increasing the initiator concentration from 16.8×10⁻⁶ to 51.3×10⁻⁶ mol·L⁻¹ led to an increase in conversion from 6.4% to 15.2% and reaction rate from 4.075×10⁻⁶ to 8.965×10⁻⁶ mol·L⁻¹·s⁻¹. It was found that increasing styrene content enhances the reaction rate from 3.11×10⁻⁶ to 11.07×10⁻⁶ mol·L⁻¹·s⁻¹. At low conversion, the composition remains close to the initial feed; however, compositional drift is observed in some systems (MA fraction increases from 0.50 to 0.70). The experimental results show good agreement with the model (±0.02–0.04).
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