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Preparation and Properties of Salicylic Acid‐Imprinted Polymers from Emulsions
Author(s) -
Li Qiu,
Zhang Weiying,
Li Xiao
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200850112
Subject(s) - ethylene glycol dimethacrylate , salicylic acid , molecularly imprinted polymer , chemistry , selectivity , dissociation constant , nuclear chemistry , molecular imprinting , polymer , polymerization , polymer chemistry , monomer , ethylene glycol , chromatography , organic chemistry , methacrylic acid , catalysis , biochemistry , receptor
Summary: Molecularly imprinted polymers with specific recognition to salicylic acid (SA‐MIPs) were prepared by oil‐in‐water emulsion polymerization using salicylic acid as template, acrylamide as functional monomer, and ethylene glycol dimethacrylate as crosslinker. The morphology and size distribution of the SA‐MIPs were detected by SEM and photon cross correlation spectrometry. Equilibrium binding experiments and Scatchard analyses were carried out to investigate the selectivity of the SA‐MIPs. The results show that the SA‐MIPs exhibit a higher affinity and selectivity to salicylic acid than to m ‐hydroxybenzoic acid and sulfosalicylic acid. Two classes of binding sites were produced in the SA‐MIPs and the equilibrium dissociation constants were estimated to be 2.03 and 9.97 mmol/L, respectively.
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