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P. Parcheta, I. Koltsov, E. Głowińska, J. Datta

Thermal degradation kinetics of poly(propylene succinate)
prepared with the use of natural origin monomers (in English)


Polimery 2018, No 10, 700


DOI: dx.doi.org/10.14314/polimery.2018.10.6

Summary

Linear bio-based polyester polyols were prepared with the use of succinic acid and 1,3-propanediol (both with natural origin). Tetraisopropyl orthotitanate (TPT) was used as a catalyst. In order to determine the effect of various synthesis temperature conditions on the thermal degradation kine­tics, nine sequences of temperature conditions were used during two-step polycondensation reaction. Thermogravimetric analysis was conducted with the use of DSC-TG/QMS method (differential scanning calorimetry-coupled with thermogravimetry and quadrupole mass spectrometry). The results indicated high thermal stability of the obtained materials. They undergo a one-step thermal decomposition with the temperature of maximum rate of weight loss at ca. 405 °C. Moreover, the thermal degradation kine­tics was determined with the use of Ozawa, Flynn and Wall as well as Kissinger methods. The highest thermal degradation activation energy was equal to 196.4 kJ/mol.

Keywords: poly(propylene succinate), bio-based polyester, thermal degradation kinetics, Ozawa, Flynn and Wall method, Kissinger method
e-mail: janusz.datta@pg.edu.pl
P. Parcheta, I. Koltsov, E. Głowińska, J. Datta (681.3 KB)
Thermal degradation kinetics of poly(propylene succinate) prepared with the use of natural origin monomers (in English)