In the past decade there has been a growing interest in the assembly of higher molecular weight materials through weak non-covalent interactions. However, it was not until recently that supramolecular recognition units were incorporate into polymeric structures as pendant side chains or as part of the structural backbone. In 2008, our group described the development of PMMA's containing calix[4]pyrrole and 15-crown[5]ether recognition groups. These systems demonstrate the ability to extract potassium fluoride and chloride salts from aqueous media. Recently, a second generation of polymers containing calixarene moieties was generated that display a high affinity for cesium nitrate. The binding and extraction properties of these polymers will be described. Also, progress in utilizing ionic species to induce supramolecular cross-linking and secondary organization will be presented.

Polymeric systems containing supramolecular receptors: Ion binding and more

239th National Meeting (2010)

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