Supramolecular Star-Shaped Poly(ethylene glycol) Based on a [2 X 2] Grid-Like Metal Complex

Hoogenboom, Richard; Moore, Brian C.; Schubert, Ulrich S.

Abstract:

Supramolecular star-shaped polymers are a class of materials that are formed by self-assembly of polymeric precursors. The resulting structures combine the beneficial properties of conventional star-shaped polymers and (reversible) supramolecular interactions. We previously introduced [2 X 2] copper(I) grids of 3,6-di(2-pyridyl)- pyridazine (DPP) as structural motif to form the core of supramolecular star-shaped polymers. In the current work, this concept is expanded to star-shaped poly(ethylene glycol) (PEG) by endfunctionalization of amine-functionalized PEG with DPP. The synthesis and characterization of PEG-DPP as well as the self-assembly into starshaped supramolecular polymers upon copper(I) complexation are discussed in detail.

Year:

2010

Type of Publication:

Article

Journal:

Macromolecular Rapid Communications

Volume:

31

Pages:

840 - 845