Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.13091/1578
Title: | Preparation and characterization of pH-sensitive semi-interpenetrating network hybrid hydrogels with sodium humate and kaolin | Authors: | Yılmaz, Elif Kaya Güzel, Gülcihan Deveci, Hüseyin |
Keywords: | Hybrid Hydrogel Semi-Ipn Ph-Sensitive Kaolin Sodium Humate Semi-Ipn Hydrogels Nanocomposite Hydrogels Drug-Delivery Superabsorbent Hydrogels Biomedical Applications Responsive Hydrogels Composite Hydrogel Controlled-Release Aqueous-Solution Cationic Dye |
Publisher: | ELSEVIER SCIENCE BV | Abstract: | Poly(acrylamide-co-methacrylic acid) semi-interpenetrating network (semi-IPN) hybrid hydrogels including sodium humate and kaolin were successfully synthesized as confirmed with X-ray diffraction (XRD) and Fourier transforms infrared spectroscopy (FTIR) analyses. Scanning electron microscopy (SEM) analysis indicated uniform dispersed morphology of the hydrogels. It was specified with thermogravimetric-derivative thermogravimetric analysis (TGA-DTG) that the addition of kaolin provided to increase thermal decomposition temperatures of the hydrogels. The semi-IPN hybrid hydrogel exhibited highest equilibrium swelling percent (ESP) of 28,700% and 3440% in distilled water and 0.1 M NaCl, respectively. The hydrogels had better swelling behavior in basic medium compared to acidic medium. While the ESP value of semi-IPN hybrid hydrogel was about 1590% at pH 2, it was determined as 7046% at pH 9. Each hydrogel showed non-Fickian type diffusion and excellent biocompatibility (> 0.94). The results suggested that the obtained pH-sensitive semi-IPN hydrogels with unique properties can be used as biomaterial, adsorbent, membrane, sensor component and so on. | URI: | https://doi.org/10.1016/j.clay.2018.06.032 https://hdl.handle.net/20.500.13091/1578 |
ISSN: | 0169-1317 1872-9053 |
Appears in Collections: | Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
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1-s2.0-S0169131718302862-main.pdf Until 2030-01-01 | 1.73 MB | Adobe PDF | View/Open Request a copy |
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