High molecular weight supramolecular polymers containing both terpyridine metal complexes and ureidopyrimidinone quadruple hydrogen-bonding units in the main chain

article



Hofmeier, H.

Hoogenboom, R.

Wouters, M.E.L.

Schubert, U.S.
Using a hydroxy-functionalized terpyridine as initiator, a poly(ε-caprolactone) containing one terpyridine endgroup was prepared by tin octanoate-catalyzed controlled ring-opening polymerization. The ω-hydroxy group of this polymer was subsequently reacted with an isocyanato-ureidopyrimidinone, resulting for the first time in polymers bearing a metal-coordinating ligand on the one and a hydrogen-bonding unit on the other chain end. Hydrogen-bonded supramolecular dimers were shown to be present in chloroform solution. The subsequent addition of iron(II) ions resulted in the formation of high molecular weight supramolecular polymers with novel properties resulting from the combination of both types of noncovalent interactions in the main chain, as could be shown using capillary viscosimetry and rheometry.
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Addition reactionsCatalysisComplexationCoordination reactionsHydrogen bondsMetallic compoundsMolecular weightPyritesRheologyRing opening polymerizationViscosityChloroformMetal-coordinating ligandSupramolecular polymersTerpyrid metal complexesOrganic polymersHydroxyl groupOctanoic acidPolycaprolactonePyrimidinone derivativeUreidopyrimidinoneChemical interactionFlow measurementHydrogen bondPolymerization
TNO Identifier
238391
Repository link
ISSN
0002-7863
Source
Journal of the American Chemical Society, 127(9), pp. 2913-2921.
Publisher
American Chemical Society ACS
Collation
9 p.
Pages
2913-2921
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