1. Selective separation of quercetin from catechin (+)/quercetin mixture using nanoporous molecularly imprinted polymers.
- Author
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Amiri, Alireza, Ramazani, Ali, Jahanshahi, Mohsen, Hosseininezhad, Seyedmohammad, and Youseftabar-Miri, Leila
- Subjects
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ACRYLIC acid , *METHACRYLIC acid , *FIELD emission electron microscopy , *SOLID phase extraction , *IMPRINTED polymers , *MONOMERS - Abstract
The three-dimensional imprinted polymeric network was synthesized via a bulk polymerization reaction in the presence of a flavonoid as a template. In this reaction, methacrylic acid (MAA) and acrylic acid (AA), tetrahydrofuran and trimethylolpropanetrimethacrylate, were used as functional monomers, porogen, and cross-linker, respectively. In this study, two kinds of molecularly imprinted polymers (MIPs) with different ratios of 1:8:40 and 1:20:80 (template: functional monomer: cross-linker) were synthesized and compared together. The related binding capacities were calculated as equal to 392.08 mg/g and 609.00 mg/g, respectively, by UV-spectrometer. The synthesized polymers have been evaluated via field emission scan electron microscopy, transmission electron microscopy, and Brunauer–Emmett–Teller techniques. High selectivity and the proper specific surface area as equal to 167.00 m2/g in MIPs-based methacrylic acid (MIPs-MAA) and 434 m2/g in MIPs-based acrylic acid (MIPs-AA) comparatively to non-imprinted molecular polymers are the privileged characteristics in this research. The MIPs provided are a good candidate for the separation of flavonoids with the solid phase extraction method. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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