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Molecularly imprinted polymers (MIPs) have been the most convenient and selectedmethods in detection and extraction for many types of specific targets in various fields. MIPswere prepared by mixing template molecule with functional monomer in thepresence of cross-linker, solvent andinitiator. The selectivity of MIPs is strongly influenced by the types offunctional monomer, solvent and polymerization process used.Pyrogallol-imprinted polymer (Py-IP) and non-imprinted polymer (NIP) weresynthesized via precipitationpolymerization using 4-vinylpyridine (4-VP), divinylbenzene (DVB) andazobisisobutyronitrile (AIBN) as functional monomer, cross-linker andinitiator, respectively. Pyrogallol (Py) was used as a target molecule. Thesynthesized polymers were characterized by FourierTransform InfraredSpectroscopy (FTIR), Scanning Electron Microscopy (SEM), and UV-VisibleSpectroscopy (UV-Vis). In this study, adsorption capacity was measuredby the dosage effect, contact time and selectivity study. Results showed thatmaximum adsorption capacity by Py-IP is above 50%. The Selectivity study shows that k? is >1, which indicates that Py-IP has a good selectivity towards pyrogallol. Therefore, it has a goodpotential to be used as an adsorbent. |
