Investigation of the Influence of UV-Irradiation on Thermal Stability of Binary Systems on the Basis of Polyethylene Glycol Fumarate with Some Vinyl Monomers

0573166 - ÚACH 2024 RIV KZ eng J - Článek v odborném periodiku
Burkeyeva, G. K. - Kovaleva, A. K. - Tazhbayev, Y. M. - Ibrayeva, Z. M. - Zhaparova, L. Z. - Meiramova, D. R. - Plocek, Jiří
Investigation of the Influence of UV-Irradiation on Thermal Stability of Binary Systems on the Basis of Polyethylene Glycol Fumarate with Some Vinyl Monomers.
Eurasian Journal of Chemistry. Roč. 110, č. 2 (2023), s. 86-93. ISSN 2959-0663. E-ISSN 2959-0671
Institucionální podpora: RVO:61388980
Klíčová slova: polymer base * sealants * UV-irradiation * thermal deformation * unsaturated polyesters * polyethylene glycol fumarate
Obor OECD: Inorganic and nuclear chemistry
Způsob publikování: Open access

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” similar to 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 deter-mined by establishing the temperature of the start of thermal deformation by thermogravimetry before and af-ter the process of UV-irradiation within 21 days. It was established that for the polymeric base with acryla-mide 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 abovesaid thermal index almost had not changed after affecting with UV-irradiation on the samples.
Trvalý link: https://hdl.handle.net/11104/0344224