High Polymer Chelates—V. Structure and Physico-Chemical Properties of Polymeric Chelates

Abstract

There are two important classes of polymeric chelates. Those formed by reaction of heavy metals cations with a preformed chelating polymer offer many interesting examples of highly selective ion-exchangers ; on the other hand, the chelation may promote important and reversible modifications of the macromolecular shape.
When a polychelate is formed by a reaction between a multivalent heavy metal cation and a bis-bidentate ligand, chains are formed which enjoy new physical properties; the most interesting one is the semiconductivity of the polychelates having a conjugated structure: their amazing electronic properties are discussed.