The Effect of Liquid Active Media on the Character of Equilibrium Swelling of Copolymers Based on Polypropylene Fumarate Phthalate with Acrylic Acid
Sarsenbekova A.Zh. Burkeyev M.Zh. Zhumanazarova G.M. Kudaibergen G.K. Nasikhatuly Y.
2023
Eurasian Journal of Chemistry
2023#109Issue 151 - 58 pp.
The article is devoted to the study of the influence of external factors on copolymers based on poly(propylene fumarate phthalate) with acrylic acid. In the present work, the effect of low-molecular salts on the swelling rate of the synthesized copolymers was studied. The surface morphology was examined using SEM. The swelling rate of the studied polymers depends on many factors, including the nature of the polymer and the solvent, the presence of electrolytes, changes in pH and ambient temperature, the molecular weight of the polymer, etc. It is assumed that the polymer network of copolymers mainly consists of links of unsaturated polyester resin. The results show that the ratio of monomer units in the copolymer significantly affects the susceptibility of the polymer gel to the presence of low-molecular salts. Changing the properties of the comonomer has been shown to produce hydrogels that can swell or collapse due to changes in ionic strength or the thermodynamic quality of the solution. By varying the ratio of the comonomeric units, the intervals of swelling and contraction of polymer meshes inherent in polyelectrolyte bodies with the same charges were adjusted. It was also found that the polymers under consideration belong to anionic meshes.
acrylic acid , anionic meshes , collapse , discreteness , low-molecular weight salts , polar organic solvents , polypropylene fumarate phthalate , radical copolymerization , swelling , unsaturated polyester resin
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Karagandy University of the name of academician E.A. Buketov, Universitetskaya street, 28, Karaganda, 100024, Kazakhstan
Karaganda Industrial University, Republic Ave. 30, Karagandy Province, Temirtau, 101400, Kazakhstan
National Center for Biotechnology, Korgalzhynhighway 13/5, Astana, 100000, Kazakhstan
Karagandy University of the name of academician E.A. Buketov
Karaganda Industrial University
National Center for Biotechnology
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