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Synthesis and binding properties of polymeric calix[4]arene nitriles

✍ Scribed by Gülderen Uysal; Shahabuddin Memon; Mustafa Yilmaz

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
129 KB
Volume
50
Category
Article
ISSN
1381-5148

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✦ Synopsis

Two new polymers containing pendant calix[4]arene units with nitrile functionalities at their lower rim have been synthesized via radical initiated reactions involving a vinylic monomer 6 h5,11,17,23-tetra-tert-butyl-25,26,27-tris(cyanomethoxy)-28-(2-acryloyloxy) ethoxycalix[4]arenej and with styrene. A five atom spacer group was incorporated between the bulky calixarene core and the acrylate moiety in order to minimize steric interactions which proved to impede the polymerization. The complexation studies were made by using liquid-liquid extraction procedures. It has been deduced 21 from the observations that both polymers show a good selectivity towards Hg like their precursor 5,11,17,23-tetra-tertbutyl-25,26,27-tricyanomethoxy-28-(2-hydroxy)ethoxycalix[4]arene 5, which supports their utility as adsorbents or potential 21 candidate materials for fabricating membranes and sensors, which can separate or detect Hg metal ions in a high selectivity.

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