Probing cavity versus surface preference of fluorescent template molecules in molecularly imprinted polystyrene microspheres was written by Sonawane, Swapnil L.;Asha, S. K.. And the article was included in Journal of Polymer Science, Part A: Polymer Chemistry in 2017.Recommanded Product: Diethyleneglycoldiacrylate This article mentions the following:
Functional polystyrene (PS) crosslinked microbeads were developed by dispersion polymerization as fluorescent molecularly imprinted polymers (MIPs) having cavities with specific recognition sites. The functional azobenzene mol. modified with pyridine was self-assembled with Pyrenebutyric acid (template mols.), and introduced during the second stage of dispersion polymerization of polystyrene. The template mol. was removed from MIP by Soxhlet using acetonitrile as solvent. Non-imprinted polymer (NIP) having no template was also synthesized for comparative study. Fluorescence spectroscopy could be used as a tool to derive insight into the location of the template mols. on the MIP or NIP. The template mols. were adsorbed on the surface of the NIPs during binding studies, which was evidenced from the pyrene excimeric emission observed at 440 nm. The template binding efficiency of the NIPs were much lower compared to MIPs. Pyrene emission from MIP upon rebinding showed typical monomeric emission in the 375-395 nm range, confirming its location in isolated cavities. In rebinding studies of the template mols., the MIPs selectively took up the template for which the cavity was designed, which demonstrated their selectivity towards template mols. © 2017 Wiley Periodicals, Inc.J. Polym. Sci., Part A: Polym.Chem. 2017. In the experiment, the researchers used many compounds, for example, Diethyleneglycoldiacrylate (cas: 4074-88-8Recommanded Product: Diethyleneglycoldiacrylate).
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