Molecularly imprinted polymers (MIPs) have been the most convenient and selected
methods in detection and extraction for many types of specific targets in various fields. MIPs
were prepared by mixing template molecule with functional monomer in the
presence of cross-linker, solvent and
initiator. The selectivity of MIPs is strongly influenced by the types of
functional monomer, solvent and polymerization process used.
Pyrogallol-imprinted polymer (Py-IP) and non-imprinted polymer (NIP) were
synthesized via precipitation
polymerization using 4-vinylpyridine (4-VP), divinylbenzene (DVB) and
azobisisobutyronitrile (AIBN) as functional monomer, cross-linker and
initiator, respectively. Pyrogallol (Py) was used as a target molecule. The
synthesized polymers were characterized by Fourier
Transform Infrared
Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and UV-Visible
Spectroscopy (UV-Vis). In this study, adsorption capacity was measured
by the dosage effect, contact time and selectivity study. Results showed that
maximum 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 good
potential to be used as an adsorbent.
