Polymer-Supported Reagents: The Role of Bifunctionality in the Design of Ion-Selective Complexants

Alexandratos, S. D.

University of Tennessee, Knoxville

关键词: Chemical Reactions;    Amino Acids;    Enzymes;    Polymers;    Synthesis;   

DOI  :  10.2172/833775
RP-ID  :  DOE/ER/13591-1
RP-ID  :  FG02-86ER13591
RP-ID  :  833775

美国|英语

来源: UNT Digital Library

【 摘 要 】

The importance of multi-functionality in the preparation of ion-selective polymers is evident from the structure of enzymes where specific metal ions are bound through cooperative interactions among different amino acids. In synthetic polymers, ionic selectivity is enhanced when a chemical reaction is superimposed on an ion-exchange process. The concept of reactive ion exchange has been extended through the synthesis of crosslinked polymers whose metal ion selectivity is a function of reduction, coordination or precipitation reactions as determined by various covalently bound ligands. Development of three classes of dual mechanism bifunctional polymers, a new series of bifunctional diphosphonate polymers, and novel bifunctional ion-selective polymers with enhanced ionic accessibility has been accomplished.