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Reference type: Journal
Authors: Ma PF, Zhou ZP, Yang WM, Tang BQ, Liu H, Xu WZ, Huang WH
Article Title: Preparation and application of sulfadiazine surface molecularly imprinted polymers with temperature-responsive properties.
Publication date: 2015
Journal: Journal of Applied Polymer Science
Volume: 132
Issue: (15)
Page numbers: Article No 41769.
DOI: 10.1002/app.41769

Abstract: Novel, temperature-responsive molecularly imprinted polymers (TMIPs) based on potassium hexatitanate whiskers for selectively adsorbing sulfadiazine (SDZ) from aqueous media were prepared with methacrylic acid (MAA) and 4-vinylpyridine (4-VP) as cofunctional monomers and N-isopropyl acrylamide (NIPAM) as a temperature-responsive monomer. The template-monomer interactions were studied by molecular simulation. In particular, the effects of different kinds of crosslinkers on the selective recognition ability of the TMIPs in water media were investigated. The temperature-responsive adsorption performance and phase behavior of the molecularly imprinted polymers were studied by batch-mode binding experiments, swelling experiments, and contact angle testing. The results demonstrate that the combination of MAA, 4-VP, and NIPAM was a favorable temperature-responsive imprinted system for SDZ in water, and the cocrosslinking agent of ethylene glycol dimethacrylate (EGDMA) and N,N'-methylene bisacrylamide (MBA) was more suitable compared with either pure EGDMA or MBA. The adsorption kinetics and adsorption isotherms were analyzed by the fitting of different adsorption models. Also, the effect of the temperature on the recovery was investigated by the determination of the spiked SDZ in real-water samples with solid-phase extraction and high-performance liquid chromatography. 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41769
Template and target information: sulfadiazine, SDZ
Author keywords: adsorption, composites, Hydrophilic polymers, Swelling, theory and modeling


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