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    Polymer Supported Calix[4] Arene Derivatives for the Extraction of Metals and Dichromate Anions
    (Kluwer Academic/Plenum Publ, 2003) Memon, Shahabuddin ; Akceylan, Ezgi; Sap, Begüm; Tabakçı, Mustafa; Roundhill, D. Max; Yılmaz, Mustafa
    Three newly synthesized polymer supported calix[ 4] arene ionophores (7-9) were synthesized, and their ion binding properties toward selected alkali (Li+, Na+, K+, Cs+) and transition metal (Hg2+, Ni2+, Cu2+, Co2+, Cd2+, and Pb2+) cations were investigated. It has been observed that these ionophores are not selective toward a particular metal cation but show better ion binding property as compared to monomeric calixarene derivatives (2 and 6). Ionophore 6 and its supported polymer were also employed in dichromate anion extraction experiments. The polymeric ionophore (9) was found an effective extractant for dichromate anion even at pH 7.