Graft Polymerization of Allylamine for the Modification of PET Track-Etched Membrane
Shakayeva A.K. Omertasov D.D. Zhatkanbayeva Z.K. Zhumazhanova A.T. Zdorovets M.V. Korolkov I.V.
30 September 2025E.A. Buketov Karaganda University Publish house
Eurasian Journal of Chemistry
2025#30Issue 385 - 92 pp.
Track-etched membranes (TMs), characterized by their precisely controlled pore size, geometry, and distribu-tion, offer a promising platform for the development of advanced membrane systems and serve as model membranes for testing and optimizing surface modification techniques. This study presents a perspective modification of poly(ethylene terephthalate) track-etched membranes (PET TM) based on photo-induced graft polymerization of allylamine (AlAm) to introduce primary amine groups on the membrane surface. The polymerization process was optimized by evaluating key parameters, including reaction time, monomer con-centration, solvent, and distance from UV-lamp. Optimal conditions for photoinduced graft polymerization were found: grafting time 60 minutes, AlAm monomer concentration 50 %, 2-propanol as a solvent and distance to UV lamp 10 cm. These parameters allowed effective modification of the polymer while maintaining the integrity of the membrane porous structure. The modified membranes were characterized using SEM-EDX, ATR FTIR, and UV-spectroscopy. The results demonstrate the successful fabrication of membranes with a high amino group content (up to 10.6±0.3 µmol/g) while preserving their porous structure. This func-tionalization enhances the practical potential for the environment and biomedical fields.
allylamine , modification , photoinduced graft polymeriza-tion , poly(ethylene terephthalate) , polymeric membranes , porous structure , surface functionalization , track-etched membrane , UV irradiation
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Institute of Nuclear Physics, Abylay khana 2/1, Astana, 010000, Kazakhstan
L.N. Gumilyov Eurasian National University, Satbaev str. 2, Astana, 010000, Kazakhstan
Institute of Nuclear Physics
L.N. Gumilyov Eurasian National University
10 лет помогаем публиковать статьи Международный издатель
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