The performance optimization and specific adsorption of L-phenylalanine imprinted polymers using 1-vinyl-3-carboxymethylimidazolium chloride as functional monomer

Abstract

L-Phenylalanine (L-Phe) imprinted polymers (L-MIPs) were prepared via precipitation polymerization using 1-vinyl-3-carboxymethylimidazolium chloride ([VCIM]Cl) as functional monomer, which could interact with L-Phe through electrostatic interactions, hydrogen-bonding, and π-π interactions. The morphologies of obtained polymers were observed by a scanning electron microscope, and their structures were analyzed by Fourier transform infrared spectroscopy. The effects of monomer species and molar ratio of template to functional monomer or crosslinker on adsorption capacity and imprinting factors (

Molecularly imprinted polymers for the selective recognition of l‐phenylalanine based on 1‐buty‐3‐methylimidazolium ionic liquid

“…Compared with those in the literature, the correlation coefficients ( R 2 ) values were much higher; this indicated that adsorption of the prepared MIPs followed the Freundlich model. This may have been due to the multiple types of binding sites on the surfaces of MIP1, MIP2, and MIP3.…”

Highly selective recognition of L‐phenylalanine with molecularly imprinted polymers based on imidazolyl amino acid chiral ionic liquid

“…Similar to the normal synthesis method, using ionic liquids as functional monomers and a cross‐linking agent to bond a subimprinted polymer was applied. In this experiment, after 912 mg of ILs is dissolved in 6 mL of water and 30 mL of methanol in a 100‐mL round‐bottom flask, 200 mg of Cu(Ac) 2 and 75.0 mg of L‐Phe were added under stirring.…”

“…Compared with reversible covalent imprinting, the noncovalent imprinting is more widely applied in the presence of porogens . Additionally, the use of ionic liquids (ILs) as functional monomers was reported to enhance the selectivity and adsorption performance of imprinted polymers . For example, L‐Phe‐imprinted polymers were prepared with [VCIM]Cl as functional monomer, and the maximum adsorption capacity to L‐Phe was 33.08 mg/g.…”

Electrochemical sensor for dimetridazole based on novel gold nanoparticles@molecularly imprinted polymer

“…Hitherto, vinylimidazolium ionic liquids (ILs) are popularly chosen as monomer to solve above disadvantages for the preparation of MIP [4,[16][17][18][19][20][21][22][23]. They not only enhance MIP water-compatible ability, but also decrease MIP particle scale in comparison with traditional monomers.…”