Study of Thermal Decomposition of the Copolymer Based on Polyethylene Glycol Fumarate with Acrylic Acid

Thermal decomposition of the copolymer based on polyethylene glycol fumarate with acrylic acid (p-EGF:AA) at four different heating rates in a nitrogen atmosphere has been investigated by the dynamic thermogravimetry (TGA) method. The TGA curves show that the decomposition process occurs in several...

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Bibliographic Details
Published in:Journal of chemistry 2022-02, Vol.2022, p.1-8
Main Authors: Burkeyev, Meyram, Tazhbayev, Yerkeblan, Bolatbay, Abylaikhan, Minayeva, Yelena, Davrenbekov, Santay, Nassikhatuly, Yermauyt, Kovaleva, Anna, Kutzhanova, Kamshat, Kazhmuratova, Akerke
Format: Article
Language:English
Subjects:
Acids
Acrylic acid
Activation energy
Analysis
Compensation
Copolymers
Decomposition
Epidermal growth factor
Heat
Methods
Polyesters
Polyethylene glycol
Process parameters
Resins
Thermal decomposition
Thermogravimetric analysis
Thermogravimetry
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Summary:Thermal decomposition of the copolymer based on polyethylene glycol fumarate with acrylic acid (p-EGF:AA) at four different heating rates in a nitrogen atmosphere has been investigated by the dynamic thermogravimetry (TGA) method. The TGA curves show that the decomposition process occurs in several stages. The experimental data processed by the Kissinger–Akahira–Sunose and Friedman isoconversion methods made it possible to calculate the activation energy of the main decomposition stage. According to the calculations results, one can see that the values found by these methods do not strongly depend on the conversion. The Achar–Brindley–Sharp method has been applied to determine the compensation parameters. Then, using the compensation effect, the invariant kinetic parameters of the decomposition processes have been found. An experimental curve has been plotted to find the reaction model in comparison with theoretical ones.
ISSN:2090-9063
2090-9071
DOI:10.1155/2022/3514358