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Synthesis and characterization of methacrylamide-based molecularly imprinted polymers for detection of di(2-ethylhexyl) phthalate
Abstract
Based on methacrylamide (MAM) and trimethylolpropane trimethacrylate (TRIM) as a cross-linking agent, molecularly imprinted polymers (MIPs) were obtained by precipitation polymerization and used for the detection of di(2-ethylhexyl)phthalate (DEHP) in drinking water in plastic packaging. The presence of functional groups -NH, -CH, -C=O, -C=C and -CO was confirmed by FT-IR. The formation of MIP_DEHP was also confirmed by EDS. Moreover, SAA analysis showed their mesoporous structure. The adsorption capacity was consistent with the isothermal Freundlich adsorption model, and the adsorption kinetics models with a pseudo-second-order reaction. Small, uniform, porous grains were observed in the MIP structure (SEM).
Keywords
polymer ; phthalates ; DEHP ; methacrylamides ; TRIM polimer ; ftalany ; DEHP ; metakryloamid ; TRIM
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