Synthesis and Characterization of Molecularly Imprinted Polymers for Phenoxyacetic Acids

Abstract

2-methylphenoxyacetic acid (2-MPA), 2-methyl-4-chlorophenxyacetic acid (MCPA) and 4-chlorophenoxyacetic acid (4-CPA) were imprinted to investigate the cross-selectivities of molecularly imprinted polymers (MIPs). The result indicates that 2-MPA, which is similar in shape, size and functionality with phenoxyacetic herbicides, are suitable to be used as a suitable template to prepare the MIPs for retaining phenoxyacetic herbicides. To study the ion-pair interactions between template molecules and functional monomer 4-vinylpiridine (4-VP), computational molecular modeling was employed. The data indicate that the cross-selectivities of MIPs for phenoxyacetic acid herbicides depend on the binding energies of complexes.

Application of molecularly imprinted polymer designed for the selective extraction of ketoprofen from wastewater

“…The obtained binding energy for the complex that is formed by ketoprofen and 2-vinylpyridine was −11.97 Kcal•mol -1 , which corresponded well with the binding energies obtained in other similar complexes (Farrington et al, 2006;Gholivand et al, 2012;Madikizela et al, 2016;Zhang et al, 2008). Therefore, these results confirmed the existence of hydrogen bonding between ketoprofen and 2-vinylpyridine.…”

Synthesis and Characterization of Molecularly Imprinted Polymer Membrane for the Removal of 2,4-Dinitrophenol

“…To date, their most extensively investigated application has been as separation materials for the analysis of various compounds, including drugs [16,17], pesticides [18,19], and amino acids [20]. A highly specific detection technology, MIPs have been used for the separation of isomers and enantiomers [21], solid extraction [22], in biochemical sensors [23] and chemosensors [24], in simulating enzyme-catalysed pharmaceutical analysis [25], in sorbents, and in membrane separation technologies [26].…”

Effect of anions on the polymerization and adsorption processes of Cu(II) ion-imprinted polymers

“…It provides a functional group which can form covalent or non-covalent bonds with template molecules or complex and end groups to link with cross-linkers to obtain three-dimensional pore structured polymers. The interaction force between monomer and template directly affects the affinity of IIPs with target ion [28,29] and the selectivity of recognition sites [30]. Generally speaking, the functional monomers in non-covalent IIPs can be divided into three categories: acidic, basic and neutral agents [31,32].…”