Synthesis and extraction studies of polymeric phthalimido functionalized calix[4]arene
作者： Gülderen Uysal Akkuş , Cihangir Cebeci
DOI: 10.1007/S10847-008-9472-Y
关键词:
摘要: The article comprises synthesis and extraction studies of polymeric calix[4]arene having phthalimide groups at the lower rim. phthalimido functionalized was synthesized via radical initiated reactions involving a vinylic monomer 5,11,17,23-tetra-tert-butyl-25-[4-(acrylamido)benzyloxy]-26,28-bis-(2-phthalimido-ethoxy)-27-hydroxycalix[4]arene (5) with styrene. A five atom spacer group incorporated between bulky calixarene core acrylate moiety in order to minimize steric interactions which proved impede polymerization. From liquid–liquid solid–liquid it has been concluded that precursor 3 (5,11,17,23-tetra-tert-butyl-25-(4-nitro benzyloxy)-26,28-bis-(3-phthalimidoethoxy)-27-hydroxy-calix[4]arene) is selective for metal cations. extractability cations by ligand decreases sequence: Hg2+ > Cd2+ Cu2+ K+ Co2+ whereas its derivative used experiments.
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