Modeling of the Thermal Degradation of Poly (methyl methacrylate) and its Nanocomposite with Multi-Walled Carbon Nanotubes

  • Alireza Aghili Department of Polymer Engineering, Shiraz Branch, Islamic Azad University, Shiraz, IRAN
  • Mohammad Reza Kamrani Centre Català Del Plàstic, Universidad Politécnica de Catalunya Barcelona Tech, Terrassa, Spain
Keywords: Thermal degradation, Modeling, Arrhenius integral, PMMA, MWNT, Nanocomposite


Modeling of non-isothermal degradation of polymers consists of the integration of the Arrhenius function which has no analytical solution. The integration is commonly estimated by a variety of approximation functions with varying complexity and precision. In this study, a mathematical formula was derived in which the Arrhenius integral is calculated without using common approximation functions. Calculations showed that the obtained formula has a better accuracy compared to the common approximation functions. The obtained formula was used to determine the kinetic parameters of thermal degradation of poly (methyl methacrylate) (PMMA) and its nanocomposite with multi-walled carbon nanotubes (MWNT). The kinetic parameters were also calculated by a different method which was based on a single point calculation and used the approximation functions for estimating the Arrhenius integral. The comparison showed that there is a better agreement between the experimentally measured and calculated data when the kinetic parameters obtained from new formula.


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How to Cite
Aghili A, Kamrani MR. Modeling of the Thermal Degradation of Poly (methyl methacrylate) and its Nanocomposite with Multi-Walled Carbon Nanotubes. AANBT [Internet]. 20Sep.2021 [cited 21Apr.2021];:22-4. Available from: