Investigation of the Influence of UV-Irradiation on Thermal Stability of Binary Systems on the Basis of Polyethylene Glycol Fumarate with Some Vinyl Monomers
Burkeyeva G.K. Kovaleva A.K. Tazhbayev Y.M. Ibrayeva Z.M. Zhaparova L.Z. Meiramova D.R. Plocek J.
2023E.A. Buketov Karaganda University Publish house
Eurasian Journal of Chemistry
2023#110Issue 286 - 93 pp.
This work is devoted to the investigation of continuous exposure to UV-irradiation on thermal stability of polymeric base of sealants. The copolymers of polyethylene glycol fumarate with acrylic and methacrylic ac-ids, and acrylamide of the composition of “unsaturated polyester: vinyl monomer” ~35:65 mass.% (corre-spondingly) were chosen as the polymer base. The samples were analyzed on microscope to the presence of microcracks as a result of exposure to UV-irradiation on them. The studied samples were evaluated visually on color change and the appearance of turbidity. Thermal stability of the studied polymeric base was determined by establishing the temperature of the start of thermal deformation by thermogravimetry before and after the process of UV-irradiation within 21 days. It was established that for the polymeric base with acrylamide in its content the temperature of the start of thermal deformation had reduced after exposure to UV-irradiation. In contrary, for the polymeric bases with acrylic and methacrylic acids in their composition the above said thermal index almost had not changed after affecting with UV-irradiation on the samples.
polyethylene glycol fumarate , polymer base , sealants , thermal deformation , unsaturated polyesters , UV-irradiation
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Karagandy University of the name of academician E.A. Buketov, Universitetskaya street, 28, Karaganda, 100024, Kazakhstan
Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Rez, Czech Republic
Karagandy University of the name of academician E.A. Buketov
Institute of Inorganic Chemistry of the Czech Academy of Sciences
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