Conclusions
1. A closed-system analysis was carried out of the kinetics and process equilibrium of the formation of dimer 1 which is one of the basic products of the initial state of the poly-esterification reaction of terephthalic acid and ethylene glycol.
2. It was established that the hydrolysis of dimer 1 proceeds along only one complexester bond and results in the formation of TPA and BHET.
3. The kinetic parameters of the esterification reaction MHET + MHET and the thermodynamic characteristics of the reaction TPA + BHET were determined.
4. The rate and equilibrium constants of the reactions MHET + BHET and TPA + MHET were calculated in the first approximation.
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Additional information
All-Union Scientific-Research Institute for Synthetic Fibres. Translated from Khimicheskie Volokna, No. 1, pp. 17–20, January–February, 1976.
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Vladimirova, M.P., Kiselev, V.V., Malykh, V.A. et al. The reactions in the polyesterification of terephthalic acid with ethylene glycol. Fibre Chem 8, 24–27 (1976). https://doi.org/10.1007/BF00546590
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DOI: https://doi.org/10.1007/BF00546590