Ordered macroporous quercetin molecularly imprinted polymers: Preparation, characterization, and separation performance

Ordered macroporous molecularly imprinted polymers were prepared by a combination of the colloidal crystal templating method and the molecular imprinting technique by using SiO2 colloidal crystal as the macroporogen, quercetin as the imprinting template, acrylamide as the functional monomer, ethylen...

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Bibliographic Details
Published in:Journal of separation science 2017-02, Vol.40 (4), p.971-978
Main Authors: Feng, Yonggang, Liu, Qin, Ye, Lifang, Wu, Quanzhou, He, Jianfeng
Format: Article
Language:English
Subjects:
Acrylamide
Adsorption
Colloids
Copolymers
Crosslinking
Crystals
Ethylene glycol
gingko extraction
Ginkgo biloba - chemistry
Glycol dimethacrylates
Hydrolysates
Imprinted polymers
Mass transfer
Molecular Imprinting
molecularly imprinted polymers
ordered macropores
Polymers
Polymers - chemistry
Porosity
quercetin
Quercetin - isolation & purification
Separation
Silicon Dioxide
Solid Phase Extraction
Sorbents
Tetrahydrofuran
Yeast
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Summary:Ordered macroporous molecularly imprinted polymers were prepared by a combination of the colloidal crystal templating method and the molecular imprinting technique by using SiO2 colloidal crystal as the macroporogen, quercetin as the imprinting template, acrylamide as the functional monomer, ethylene glycol dimethacrylate as the cross‐linker and tetrahydrofuran as the solvent. Scanning electron microscopy and Brunauer–Emmett–Teller measurements show that the ordered macroporous molecularly imprinted polymers have a more regular macroporous structure, a narrower pore distribution and a greater porosity compared with the traditional bulk molecularly imprinted polymers. The kinetic and isothermal adsorption behaviors of the polymers were investigated. The results indicate that the ordered macroporous molecularly imprinted polymers have a faster intraparticle mass transfer process and a higher adsorption capacity than the traditional bulk molecularly imprinted polymers. The ordered macroporous molecularly imprinted polymers were further employed as a sorbent for a solid‐phase extraction. The results show that the ordered macroporous molecularly imprinted polymers can effectively separate quercetin from the Gingko hydrolysate.
ISSN:1615-9306
1615-9314
DOI:10.1002/jssc.201601011