Thermal degradation of polyester–metal oxide mixtures: Fibrous morphology of carbonaceous compounds and pyrolysis products distribution

Terakado, Osamu; Ueda, Minako; Hirasawa, Masahiro

doi:10.1016/j.jaap.2010.08.001

Cited by 9 publications

(1 citation statement)

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“…Thermal decomposition of polyesters has been extensively investigated during the last two decades utilizing several techniques, due to the dominating character of these materials in the plastics' market, among other commodity and engineering polymeric materials [38][39][40][41][42][43][44]. While widely used thermal analysis techniques, such as TGA, deliver valuable information about the thermal stability as well as the kinetics of thermal degradation, Py-GC/MS can provide in depth data about the particular pathway of the degradation of polymeric backbones [45][46][47][48][49].…”

Section: Evaluation Of the Decomposition Mechanism Using Py-gc/msmentioning

confidence: 99%

Thermal Stability and Decomposition Mechanism of Poly(alkylene succinate)s

et al. 2022

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In the present study, a series of aliphatic polyesters based on succinic acid and several diols with 2, 4, 6, 8, and 10 methylene groups, namely poly(ethylene succinate) (PESu), poly(butylene succinate) (PBSu), poly(hexylene succinate) (PHSu), poly(octylene succinate) (POSu), and poly(decylene succinate) (PDeSu), were prepared via a two-stage melt polycondensation method. All polyesters were semicrystalline materials with Tm ranging from 64.2 to 117.8 °C, while their Tg values were progressively decreasing by increasing the methylene group number in the used diols. Thermogravimetric analysis (TGA) revealed that the synthesized poly(alkylene succinate)s present high thermal stability with maximum decomposition rates at temperatures 420–430 °C. The thermal decomposition mechanism was also evaluated with the aid of Pyrolysis–Gas chromatography/Mass spectrometry (Py–GC/MS), proving that all the studied polyesters decompose via a similar pathway, with degradation taking place mainly via β–hydrogen bond scission and less extensive with homolytic scission.

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