## Abstract Novel molecularly imprinted polymer systems utilizing 4‐vinylpyridine and 1‐vinylimidazole as functional monomers have been developed for enantioselective recognition of carboxylic and N‐protected amino acids. Non‐covalent interactions between the functional monomers and the template mo
Selective separation of magnolol using molecularly imprinted membranes
✍ Scribed by Xing-Yi Zhu; Zhang-Juan Zheng; Jie Xie; Ping Wang
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 231 KB
- Volume
- 35
- Category
- Article
- ISSN
- 1615-9306
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✦ Synopsis
Abstract
Molecularly imprinted membranes (MIMs) for selective separation of magnolol were prepared by thermal polymerization using magnolol as the template, ethylene glycol dimethacrylate (EGDMA) as the cross‐linker, 2,2‐azobisisobutyronitrile (AIBN) as the initiator, organic solvent as the porogen, methacrylamide (MAM) and acrylic acid (AA) as the functional monomers and cellulose acetate as the agglutinant. Commercial filter paper was used as the supporting material. The effects of different porogens and the ratio of functional monomers on the binding and recognition capacity of MIMs were investigated, and the morphology of the membranes was examined by scanning electron microscopy (SEM). The results showed that the MIMs have the highest selectivity to magnolol when the ratio of MAM/AA was 1:4 and tetrahydrofuran (THF) with dimethyl sulfoxide (DMSO) was used as the porogen. The morphology of the imprinted membranes after template extracting is much rougher with big cavities than that of the non‐imprinted membranes (NIMs) and the imprinted membranes before template extracting. The MIMs can selectively separate the magnolol.
📜 SIMILAR VOLUMES
Adsorption isotherms of As and Gs of DIDE membrane imprinted by 9-EA. ((9-EA)/(DIDE) = 0.5; k D = 4.5 6 10; n = 0.19; K C = 2.4 6 10 3 mol -1 N dm 3 ; [DIDE] = 0.25 mol N dm -3 ).
## Abstract The magnetic molecularly imprinted polymers (MMIPs) have been synthesized using piperonal molecules as dummy template and magnetic wollastonite composites as support. The resulting composites were applied to selective recognition of sesamol from aqueous solution. MMIPs were characterize