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Synthesis of novel silica gel immobilized‐calix[4]arene amide ionophores and their anion binding abilities toward phosphate and chromate anions
Author(s) -
Yiǧiter Şengül,
Bayrakcı Mevlüt,
Ertul Şeref,
Yılmaz Mustafa
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35471
Subject(s) - calixarene , chemistry , extraction (chemistry) , pyridine , amide , silica gel , monomer , phosphate , chromate conversion coating , liquid–liquid extraction , polymer chemistry , cyclophane , chromatography , organic chemistry , nuclear chemistry , inorganic chemistry , molecule , coating , polymer
This article describes the synthesis and characterization of four new calix[4]arene ionophores 5–7 and 9 and corresponding two new silica gel‐immobilized calix[4]arene ionophores containing pyridine 10 and 11 via modification of calix[4]arene monoamide derivatives 5 and 6 with aminopropyl silica gel, respectively. The extraction studies have been performed using liquid–liquid extraction for receptors 5–7 and 9 and solid–liquid batchwise sorption procedures for receptors 10 and 11 . Obtained extraction results showed that the immobilized‐calix[4] arene ionophores 10 and 11 have high extraction ability toward chromate and phosphate anions as compared to their corresponding monomeric precursors 5 and 6 . © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012