| 초록 |
Poly(GMA-co-PEGDA) microbeads were synthesized by suspension polymerization and modified with iminodiacetic acid. The microbeads were spheres, irrespective of the components, and their sizes ranged from 30-250 μm. The structures of the microbeads were confirmed by Fourier transform infrared (FTIR) spectroscopy. Bands at 1250 cm-1, 912 cm-1 and 765 cm-1 resulted from symmetric stretching of the epoxy ring, asymmetric ring stretching of the C-C bond and a 12 micron band, respectively. The synthetic yields and ion exchange capacities ranged from 87-98% and 0.936-2.872 meq/g, respectively. The water uptake ranged from 30-70%. The properties and kinetics of indium adsorption onto the microbeads were investigated. The maximum adsorption was predicted by the Langmuir adsorption isotherm and Freundlich adsorption model |
