Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel Systems
Hybrid polyacrylate-silicate hydrogels were obtained in the presence of <i>N</i>,<i>N</i>′-methylenebisacrylamide (NNMBA) as the cross-linking monomer and sodium thiosulphate/potassium persulphate (NTS/KPS) as the redox initiators. The results of the tests allowed us to concl...
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doaj-630321a46c7149ef808221063a76c1b32020-11-25T03:16:31ZengMDPI AGMaterials1996-19442020-09-01134092409210.3390/ma13184092Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel SystemsJoanna Mastalska-Popławska0Agata Stempkowska1Iwona Habina-Skrzyniarz2Artur T. Krzyżak3Paweł Rutkowski4Piotr Izak5Jakub Rudny6Tomasz Gawenda7Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandFaculty of Mining and Geoengineering, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandFaculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandFaculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandFaculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandFaculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandFaculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandFaculty of Mining and Geoengineering, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, PolandHybrid polyacrylate-silicate hydrogels were obtained in the presence of <i>N</i>,<i>N</i>′-methylenebisacrylamide (NNMBA) as the cross-linking monomer and sodium thiosulphate/potassium persulphate (NTS/KPS) as the redox initiators. The results of the tests allowed us to conclude that a hybrid structure with a polyacrylate scaffolding and a silicate matrix had been obtained. The results of the rheological analysis revealed that the hydrogel sample with a 1:7 mass ratio of sodium water glass to the sodium polyacrylate is characterized by the highest complex viscosity. Thermal analysis (Thermogravimetry/Differential Scanning Calorimetry (TG/DSC)) showed that water begins to evaporate at higher temperatures, from 120 °C to even 180 °C. These results were confirmed by mid-infrared spectroscopy (MIR) and nuclear magnetic resonance spectroscopy (NMR) analysis. Differences in the intensity of the peaks derived from water in the MIR spectra indicate that most of the water is bounded. In turn, NMR results showed that the mobility of water molecules decreases as the amount of sodium water glass in the mixture increases.https://www.mdpi.com/1996-1944/13/18/4092hybrid hydrogelssodium water glassporosityrelaxation timeviscoelasticity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Joanna Mastalska-Popławska Agata Stempkowska Iwona Habina-Skrzyniarz Artur T. Krzyżak Paweł Rutkowski Piotr Izak Jakub Rudny Tomasz Gawenda |
spellingShingle |
Joanna Mastalska-Popławska Agata Stempkowska Iwona Habina-Skrzyniarz Artur T. Krzyżak Paweł Rutkowski Piotr Izak Jakub Rudny Tomasz Gawenda Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel Systems Materials hybrid hydrogels sodium water glass porosity relaxation time viscoelasticity |
author_facet |
Joanna Mastalska-Popławska Agata Stempkowska Iwona Habina-Skrzyniarz Artur T. Krzyżak Paweł Rutkowski Piotr Izak Jakub Rudny Tomasz Gawenda |
author_sort |
Joanna Mastalska-Popławska |
title |
Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel Systems |
title_short |
Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel Systems |
title_full |
Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel Systems |
title_fullStr |
Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel Systems |
title_full_unstemmed |
Water Interactions in Hybrid Polyacrylate-Silicate Hydrogel Systems |
title_sort |
water interactions in hybrid polyacrylate-silicate hydrogel systems |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2020-09-01 |
description |
Hybrid polyacrylate-silicate hydrogels were obtained in the presence of <i>N</i>,<i>N</i>′-methylenebisacrylamide (NNMBA) as the cross-linking monomer and sodium thiosulphate/potassium persulphate (NTS/KPS) as the redox initiators. The results of the tests allowed us to conclude that a hybrid structure with a polyacrylate scaffolding and a silicate matrix had been obtained. The results of the rheological analysis revealed that the hydrogel sample with a 1:7 mass ratio of sodium water glass to the sodium polyacrylate is characterized by the highest complex viscosity. Thermal analysis (Thermogravimetry/Differential Scanning Calorimetry (TG/DSC)) showed that water begins to evaporate at higher temperatures, from 120 °C to even 180 °C. These results were confirmed by mid-infrared spectroscopy (MIR) and nuclear magnetic resonance spectroscopy (NMR) analysis. Differences in the intensity of the peaks derived from water in the MIR spectra indicate that most of the water is bounded. In turn, NMR results showed that the mobility of water molecules decreases as the amount of sodium water glass in the mixture increases. |
topic |
hybrid hydrogels sodium water glass porosity relaxation time viscoelasticity |
url |
https://www.mdpi.com/1996-1944/13/18/4092 |
work_keys_str_mv |
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