| 초록 |
The copolymer solutions were synthesized with 4-vinylvenzylchloride, styrene and 2-hydroxyethyl acrylate via free radical polymerization. To confirm the membrane properties according to bulkiness of aminating agent, these solutions were aminated with various aminating agents including trimethylamine, triethylamine, tripropylamine and tributylamine and then we have prepared anion-exchange membranes using these aminated copolymer solutions, respectively. The structure of aminated copolymer solutions were investigated by fourier transform infrared (FT-IR) analysis. The membrane properties such as water content, ion exchange capacity, electrical resistance, ion conductivity and permselectivity about nitrate were measured. The maximum water content, ion exchange capacity, electrical resistance and ion conductivity were 45.5%, 0.90 meq/g dry membrane, 60.2 Ω • cm2 and 0.0109 S/cm, respectively. The permselectivity about nitrate of membrane containing tributylamine groups was the highest in comparison with other membranes. |
