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Influence of the RAFT Agent on the Reaction Direction of the Copolymerization of Polypropylene Glycol Maleate with Acrylic Acid
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SYSNO ASEP 0561241 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Influence of the RAFT Agent on the Reaction Direction of the Copolymerization of Polypropylene Glycol Maleate with Acrylic Acid Author(s) Kazhmuratova, A. T. (KZ)
Zhunissova, M. (KZ)
Plocek, Jiří (UACH-T) RID, ORCID, SAI
Fomin, V. N. (KZ)
Sarsenbekova, A. Zh. (KZ)
Khamitova, T. O. (KZ)Number of authors 6 Source Title Bulletin of the Karaganda University-Chemistry - ISSN 2518-718X
Roč. 2022, 107 SI (2022), s. 189-197Number of pages 9 s. Language eng - English Country KZ - Kazakhstan Keywords unsaturated polyester ; polypropylene glycol maleate ; acrylic acid ; RAFT-polymerization Subject RIV CA - Inorganic Chemistry OECD category Inorganic and nuclear chemistry Method of publishing Open access Institutional support UACH-T - RVO:61388980 UT WOS 000849737600001 DOI 10.31489/2022Ch3/3-22-10 Annotation This work demonstrates the capability of synthesizing new polymers on the basis of unsaturated polyester and acrylic acid in the presence of a chain-transfer agent in a dioxane solution. The initial unsaturated polyester resin was derived from the polycondensation reaction of alcohol and maleic anhydride. The molecular weight of the polypropylene glycol maleate was determined by gel permeation chromatography. The dependence of the structure, network density and product yield on the concentration of the RAFT agent was proven. It was found that the greater the amount of chain-transfer agent in the monomer mixture, the lower the yield of the crosslinked polymer and the greater the yield of the branched copolymer. The composition of the studied co-polymers was determined by FTIR spectroscopy in conjunction with the chemometric method of partial list squares in the R environment. The synthesized objects were characterized by infrared spectroscopy methods and were approximated by Gaussian contours. The results of this study show that the RAFT agent concentra-tion as well as the initial ratio of monomers in the copolymer affect the products yield. The surface topogra-phy of the studied copolymers was recorded by scanning electron microscopy. The molecular chain structure of the branched copolymers was confirmed by NMR spectroscopy. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0337729
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