Supramolecular Star-Shaped Poly(ethylene glycol) Based on a [2 × 2] Grid-Like Metal Complex
✍ Scribed by Richard Hoogenboom; Brian C. Moore; Ulrich S. Schubert
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 397 KB
- Volume
- 31
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
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 × 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 end‐functionalization of amine‐functionalized PEG with DPP. The synthesis and characterization of PEG‐DPP as well as the self‐assembly into star‐shaped supramolecular polymers upon copper(I) complexation are discussed in detail.
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