Kinetics of thermal decomposition of PMMA at different heating rates and in a wide temperature range

Kinetics of thermal decomposition of PMMA at different heating rates and in a wide temperature range Full article

Journal

Thermochimica Acta
ISSN: 0040-6031 , E-ISSN: 1872-762X

Output data

Year: 2019, Volume: 671, Pages: 17-25 Pages count : 9 DOI: 10.1016/j.tca.2018.10.019

Tags

Polymethylmetacrylate; Thermal decomposition; Thermogravimetric analysis; Differential mass-spectrometric thermal analysis; Kinetics of thermal decomposition; Microscale combustion calorimetry; Fast pyrolysis

Authors

Korobeinichev O.P. ¹ , Paletsky A.A. ¹ , Gonchikzhapov M.B. ^1,2 , Glaznev R.K. ^1,2 , Gerasimov I.E. ¹ , Naganovsky Y.K. ³ , Shundrina I.K. ⁴ , Snegirev A.Yu ⁵ , Vinu R. ⁶

Affiliations

1	(Данные Web of science) Russian Acad Sci, Siberian Branch, Voevodsky Inst Chem Kinet & Combust, Novosibirsk, Russia
2	(Данные Web of science) Novosibirsk State Univ, Novosibirsk, Russia
3	(Данные Web of science) All Russian Res Inst Fire Protect, Minist Russian Federat Civil Def Emergencies & El, Balashikha, Russia
4	(Данные Web of science) Russian Acad Sci, Siberian Branch, NN Vorozhtsov Novosibirsk Inst Organ Chem, Novosibirsk, Russia
5	(Данные Web of science) Peter Great St Petersburg Polytech Univ, St Petersburg, Russia
6	(Данные Web of science) Indian Inst Technol Madras, Chennai, India

Using the methods of differential mass-spectrometric thermal analysis (DMSTA), thermogravimetric analysis (TGA), microscale combustion calorimetry (MCC), and fast pyrolysis (FP), thermal decomposition of high-molecular-weight polymethylmetacrylate (PMMA) has been investigated in the temperature range of 315 + 500 degrees C. Based on these data, the kinetic parameters (the activation energy, the pre-exponential factor) were obtained of a one-step pyrolysis reaction in supposition of a first-order reaction using simple mathematical fitting and an iso-conversion method. Validity of the obtained kinetic parameters was verified by comparing the experimental data on dependence of the decomposition rate on temperature in the broad range of the heating rates with the results of simulating the above dependence, using these kinetic parameters. These parameters, obtained in the broad temperature range, may be further used in numerical simulation of PMMA combustion under fire conditions and for assessing the polymer's flammability.

Korobeinichev O.P. , Paletsky A.A. , Gonchikzhapov M.B. , Glaznev R.K. , Gerasimov I.E. , Naganovsky Y.K. , Shundrina I.K. , Snegirev A.Y. , Vinu R.
Kinetics of thermal decomposition of PMMA at different heating rates and in a wide temperature range
Thermochimica Acta. 2019. V.671. P.17-25. DOI: 10.1016/j.tca.2018.10.019 WOS Scopus РИНЦ

Published print:

Jan 1, 2019

Web of science	WOS:000458595100003
Scopus	2-s2.0-85056479052
Elibrary	38625776
OpenAlex	W2898884925