Synthesis of polyether for chelating with metal ions in solution / Suttipong Tunyapisetsak = การสังเคราะห์พอลิอีเธอร์สำหรับการคีเลตไอออนของโลหะในสารละลาย / สุทธิพงศ์ ธัญญะพิเศษศักดิ์
The objectives of this research are to synthesize chelating polyether containing aromatic diamine ligand and to determine their chelating ability with metal ions. The Bisphenol-A epoxy resin (2) was crosslinked with crosslinking agent, 2,4-Diamino-6-hydroxy pyrimidine (3), which was the new crosslinking agent having never been used to react with 2 before. The crosslinked resin (4) was the product obtained. The chelating ability of 4 with five metal ions, ie., Ni(II), Cu(II), Co(II), Zn(II) and Pb(II), in various solvents was determined. It was found that 4 is selective to chelate with Pb(II) only. The maximum chelating capacity with Pb(II) was obtained when the mixture of 80% dioxane to 20% water volume by volume was employed.
