Synthesis of Some New Polysiloxane Ligand System (Iminodiacetate) Part I

Abstract

The polysiloxane-immobilized glycinate and immodiacetate chelating ligand system of the general formula Ⓟ-(CH₂)₃N(CH₂CO₂H)₂ (where Ⓟ represents the polysiloxane network), have been prepared by the reaction
of 3-halopropyltrimethoxysilane before or after its hydrolytic polycondensation
with tetraethoxysilane and diethyliminodiacetate
HN(CH₂CO₂Et)₂. The elemental analyses indicate that the replacement of
iodine by diethyliminodiacetate ligand groups takes place much easier than
chlorine. The iminodiacetate polysiloxane ligand systems show high potential
for copper(II) uptake and form 1 : 1 complexes with copper(II).