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Thermal behavior of phthalic anhydride-based polyesters

Part I. Influence of the polyol on the thermal stability

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Abstract

A series of three phthalic polyesters with 1,2 propylene glycol, trimethylolpropane and glycerin were synthesized in a molar ratio anhydride:polyol of 1:1.25 so that a rather linear macromolecular chains were obtained with side alchyl and/or hydroxyl groups. The thermal behavior was estimated by means of the thermoanalytical curves obtained under non-isothermal conditions in dynamic air atmosphere, in order to estimate the polyol influence on the thermal stability of phthalic polyesters. A quantitative estimation of the thermal stability was possible due to a kinetic analysis using three different data processing methods. Only the modified NPK method allows a complete quantitative and objective description of the thermodegradation rate. From the three prepared polyesters, that one with glycerin presented the lowest thermal stability.

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Acknowledgements

This work was supported by POSCCE Grant No. 12PO102418/5124/22.05.2014, SMIS 50328: “New energetic efficient technology for synthesis of polyester copolymers”

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Authors and Affiliations

  1. Research Center for Thermal Analysis in Environmental Problems, West University of Timisoara, 16 Pestalozzi St., 300115, Timisoara, Romania

    Gabriela Vlase, Constantin Bolcu, Dorina Modra, Mihaela Maria Budiul, Ionuţ Ledeţi, Paul Albu & Titus Vlase

  2. Faculty of Pharmacy, University of Medicine and Pharmacy “Victor Babeş”, 2 Eftimie Murgu Square, 300041, Timisoara, Romania

    Ionuţ Ledeţi

  3. Faculty of Pharmacy, “Vasile Goldis” West University of Arad, 86 L. Rebreanu St., 310414, Arad, Romania

    Paul Albu

Authors
  1. Gabriela Vlase
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  2. Constantin Bolcu
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  3. Dorina Modra
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  4. Mihaela Maria Budiul
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  5. Ionuţ Ledeţi
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  6. Paul Albu
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  7. Titus Vlase
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Correspondence to Titus Vlase.

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Vlase, G., Bolcu, C., Modra, D. et al. Thermal behavior of phthalic anhydride-based polyesters. J Therm Anal Calorim 126, 287–292 (2016). https://doi.org/10.1007/s10973-016-5509-4

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  • DOI: https://doi.org/10.1007/s10973-016-5509-4

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