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Название: Hydrophilic Molecularly Imprinted Phenol-Amine-Formaldehyde Resins
Авторы: Petrova, Yu. Yu.
Bulatova, E. V.
Zelentsov, D. O.
Mateyshina, Yu. G.
Дата публикации: 2023-09
Издатель: Уральский федеральный университет
Ural Federal University
Библиографическое описание: Hydrophilic Molecularly Imprinted Phenol-Amine-Formaldehyde Resins / Yu. Yu. Petrova, E. V. Bulatova, D. O. Zelentsov, Yu. G. Mateyshina // Chimica Techno Acta. — 2023. — Vol. 10, No. 3. — № 202310310.
Аннотация: Hydrophilic molecularly imprinted resins (MIR), which are produced using hydrophilic monomers such as phenols, aldehydes, melamine or urea, have recently attracted increasing attention for use in separation and preconcentration. Among their obvious advantages are good sorption capacity, high recovery and selectivity, as well as their reusability in aqueous solutions. In this work we applied the bulk molecular imprinting method to produce quercetin-imprinted phenol-amino-formaldehyde resin. For this purpose, phloroglucinol and melamine solutions were mixed with formaldehyde and then polyethylene glycol and quercetin (Qu) were added to the obtained solution as a porogen and a template, respectively. The mixture was stirred under heating, then left in the thermostat for a continuous time. The optimum ratio of phloroglucinol to melamine was 3:1. The average molecular mass of porogen (Mw) varied between 4000–10000 Da. The obtained MIR were eluted with ethanol-water mixture (4:1, v/v) in the Soxhlet extractor for 36 h to remove the template. The MIR were characterized by FTIR-spectroscopy, laser diffraction spectroscopy and differential thermal analysis. The maximum recovery and sorption capacity of MIR synthesized in the presence of a porogen with Mw 10000 were 47% and 4.7 μmol Qu/g, respectively. The maximum imprinting factor was 1.41. The sorption kinetics of quercetin by a non-imprinted resin (NIR) is best described by a pseudo-second-order model, while MIR has a mixed pseudofirst-second-order mechanism.
Ключевые слова: MOLECULAR IMPRINTING
HYDROPHILIC RESINS
SORPTION
REBINDING
QUERCETIN
URI: http://elar.urfu.ru/handle/10995/128359
Конференция/семинар: IХ Международная Российско-Казахстанская научно-практическая конференция «Химические технологии функциональных материалов»
Chemical Technologies of Functional Materials
RKFM'23
Дата конференции/семинара: 25.05.2023-27.05.2023
Идентификатор РИНЦ: https://elibrary.ru/item.asp?id=55174867
ISSN: 2411-1414
DOI: 10.15826/chimtech.2023.10.3.10
Сведения о поддержке: The work was carried out within the framework of the state task of the ISSCM SB RAS (project №121032500065-5).
The authors are grateful to D. A. Lazarev, an expert of the Center for Collective Use of Surgut State University, and D. R. Mukhutdinov, M.M. Gasanova, and U. V. Novokshanova for assistance in conducting the experiments.
Источники: Chimica Techno Acta. 2023. Vol. 10. № 3
Располагается в коллекциях:Chimica Techno Acta

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