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Water Sorption Behaviors of Novel biohybrid hydrogels as Effective Sorbents in Water-Solvent Binary Mixtures

Journal of Encapsulation and Adsorption Sciences 2020年第3期10卷 43-70页

作者： Erdener Karadağ Belgin Yel Semiha Kundakcı Ömer Barış Üzüm Aydın Adnan Menderes University Fen-Edebiyat Faculty Chemistry Department Ayd&#305n Turkey

Novel sorbent hydrogels containing acrylamide/sodium vinylsulfonate, carboxymethyl cellulose and zeolite were synthesized with free radical solution polymerization by using ammonium persulfate/N,N,N’,N’-tetramethylethyle-nediamine as redox initiating pair in presence of poly(ethylene glycol) diacrylate as crosslinker. It was to investigate the water uptake properties of series of the novel hydrogels, the semi IPNs and the hybrid/biohybrid composite hydrogel sorbents synthesized in this study. Water uptake studies were performed in water and in water-solvent (acetone, methanol and tetrahydrofuran) binary mixtures at 25°C, gravimetrically. Some swelling and diffusion parameters were calculated and discussed. It has been seen that the lower equilibrium swelling factor values in all solvent compositions in comparison with the equilibrium swelling factor values in water.

关键词： Acrylamide/Sodium Vinylsulfonate biohybrid hydrogel Swelling Carboxymethyl Cellulose Zeolite Water-Solvent Binary Mixtures

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Swelling Performance Studies of Acrylamide/Potassium 3-Sulfopropyl Methacrylate/Sodium Alginate/Bentonite biohybrid Sorbent hydrogels in Binary Mixtures of Water-Solvent

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Journal of Encapsulation and Adsorption Sciences 2019年第1期9卷 35-61页

作者： Erdener Karadag Z.Deniz Kasim Oztürk Ö mer Baris Uzüm Semiha Kundakci Chemistry Department Fen-Edebiyat FacultyAdnan Menderes UniversityAydinTurkey

In this study, it was to investigate the swelling performance of novel biohybrid composite hydrogel sorbents containing acrylamide/potassium 3-sulfopropyl methacrylate/sodium alginate/bentonite in water and binary mixtures of water-solvent. Novel hydrogels were synthesized with free radical solution polymerization by using ammonium persulfate/N,N,N’,N’-tetramethylethylenediamine as redox initiating pair in presence of poly(ethylene glycol) diacrylate as crosslinker. Swelling experiments were performed in water and binary mixtures of water-solvent (acetone, methanol and tetrahydrofuran) at 25°C, gravimetrically. Some swelling and diffusion properties of the hydrogels were calculated and they were discussed for the biohybrid/hybrid hydrogel systems prepared under various formulations. It has been seen the lower equilibrium percentage swelling ratio values (62% - 124%) in all solvent compositions in comparison with the equilibrium percentage swelling ratio values in water (718% - 2055%). Consequently, the hydrogel systems developed in this study could serve as a potential device for water and water-solvent binary mixtures.

关键词： Acrylamide/Potassium 3-Sulfopropyl Methacrylate biohybrid hydrogel Swelling Sodium Alginate Bentonite Water-Solvent Binary Mixtures

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