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

摘要

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{5, 11, 17, 23-tetra-tert-butyl-25,26,27-tri- s(cyanomethopxy)-28-(2-acryloyloxy)ethoxycalix[4]arene} 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.