Факультет електроніки та інформаційних технологій (ЕлІТ)
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Item Hybrid Hydrogel Materials with Incorporated Nanoparticles(Sumy State University, 2013) Samchenko, Yu.M.; Kryklia, S.O.; Poltoratska, T.P.; Суходуб, Леонід Федорович; Суходуб, Леонид Федорович; Sukhodub, Leonid Fedorovych; Isheikina, Yu.O.; Makarenko, V.I.; Konovalova, V.V.Synthesis and physico-chemical studies of new promising hybrid hydrogels based on polyvinyl alcohol (PVA) acetales and copolymer hydrogels based on vynil monomers have been studied. Acrylamide and Acrylnitrile were used as some of components that carry various fillers . Sponge acetales of polyvinyl alco-hol were used as enforcing net. The synthesized composites demonstrated high strength as compared to standard hydrogels- Yung-module varied in the range of 80 to 300 kPa depending on the extent of PVA ac-etale matrix filling with hydrogel component. The materials showed high sorbability to water and water solutions. Study of swelling kinetics as compared to solvents of various nature (water, ethanol, sunflower oil ) was carried out. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35464Item Thermosensitive Hydrogels and Microgels Based on N-isopropylacrylamide and Acrylamide with Incorporated Magnetite(Sumy State University, 2013) Korotych, O.I.; Samchenko, Yu.M.; Ulberg, Z.R.; Суходуб, Леонід Федорович; Суходуб, Леонид Федорович; Sukhodub, Leonid FedorovychHydrogels with magnetic properties (ferrogels) are very promising for medical application, first of all, for the design of targeted delivery systems with controlled release of drugs and for magnetic hyperthermia and could be obtained using different techniques (ex- and in-situ syntheses). The present work is devoted to the study of magnetite (Fe3O4) formation inside the nanoreactors of (co)polymeric gels (hydrogels and mi-crogels) based on the derivatives of acrylic acid: N-isopropylacrylamide, acrylamide, and N,N-methylenbisacrylamide (crosslinking agent). Influence of hydrophilic–lipophilic balance of (co)polymeric templates, temperature, pH and concentration of iron cations on the magnetite formation inside polymeric matrixes were investigated along with the development of ferrogel preparation technique. Physical and chemical properties of obtained ferrogels have been studied with gravimetric analysis, thermogravimetric analysis, X-ray fluorescence spectroscopy, X-ray diffraction, optical and transmission microscopies, IR spec-troscopy, etc. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35445