Immobilized calixarenes and calixarene-related compounds are produced
by a process comprising either:
- (a) contacting the calixarene or calixarene-related compound with a
substrate containing one or more metallic or non-metallic oxides that has been
surface modified by reaction with one or more polyhalides and/or polyalkoxides
of an element capable of forming a stable aryloxide species with the substrate, or
- (b) reaction of such a substrate with a calixarene or calixarene-related
compound that has been previously modified or derivatized by reaction with said
polyhalides and/or polyalkoxides.