Abstract
Three polymeric calix[4]arenes were synthesized by reacting chloromethylated polystyrene with 25,26,27-tribenzoyloxy-28-hydroxy calix[4]arene ( 2a, 3a) and polyacryloyl chloride with 25,26,27,28-tetraacetoxy calix[4]arene ( 4a). After alkaline hydrolysis of the polymers, they were utilised for selective extraction of some transition metal cations from aqueous phase to organic phase. It was found that the polymeric calix[4]arenes were selective to extract Fe 3+ from an aqueous solution which contained Cu 2+, Ni 2+, Co 2+, and Fe 3+ cations and it was observed that the polymer supported onto the lower rim calix[4]arene is a more efficient carrier of Fe 3+ in the extraction process.
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