Abstract
Random copolyesters of dimethyl terephthalate (DMT), ethylene glycol (EG) and propane-1,3-diol (PrG) and the homo-polyesters poly(ethylene terephthalate) (PET) and poly(trimethylene terephthalate) (PPrT) have been subjected to differential thermal analysis (DTA) and thermogravimetry (TG). Thermodynamic parameters like enthalpy of fusion (ΔHf), entropy of fusion (ΔSf) and percent crystallinity (Xc) are discussed in terms of structural differences, particularly the effect of composition and chain flexibility. Kinetic order and activation energy for the thermal degradation of the copolyesters are discussed.
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Ponnusamy, E., Balakrishnan, T. Studies of Copolyesters. Thermal Characterization and Kinetics of Thermal Degradation of Poly(ethylene/trimethylene terephthalate) Copolyesters. Polym J 17, 473–477 (1985). https://doi.org/10.1295/polymj.17.473
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DOI: https://doi.org/10.1295/polymj.17.473