Synthesis And Characterization Of An Ion Imprinted Polymer For Cadmium Using Quinaldic Acid As Complexing Agent And Applying By Microwave
Asmawati, Abd.Wahid Wahab, Buchari, Paulina Taba
Keywords: Cadmium, polymer, complexing agent, monomer, cross-linker, initiator, microwave
Abstract: A Cd2+ Ion Imprinted Polymer (Cd-IIP) has been synthesized by copolymerizaton of cadmium ion, quinaldic acid (complexing agent), 4-vynil pyridine (monomer), dimethyl sulfoxide (solvent), ethyleneglycoldimethacrylate, EGDMA (cross-linker) and 2,2-azobis-isobutyronitrile, AIBN (initiator). Polymerization was conducted using a microwave at a temperature of 70 oC with heating times of 45 minutes. The template (Cd2+) was removed by leaching the template with ethanol and 4 M HCl, washed by aquabidest and dried in an oven at the temperature of 60oC. The polymer particles (imprinted and nonimprinted) were characterized using fourir transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The result showed that using heating time 45 minutes at temperature 70 oC, the particle morphology is viewed like as the large homogeneous. So, the imprinted polymer had bands at 3483 cm-1 ,1726 cm-1, and 1155 cm-1 indicating the presence of OH, C=O and C-O, respectively.
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