Selective Cation Binding by Polymers with Pendant Crown Ethers

Abstract

Polymers with pendant crown ethers show different selectivity from their monomers in complex formation with metal cations due to the ease of a 1:2 complex formation. They can be prepared either by the polymerization of the crown vinyl monomers or by the polymer reaction. The former method is preferable for studies on basic properties since it gives a regular polymer with pendant crown ether, however, the latter one is advantageous from an economic standpoint.