Study of the Influence of the Metal-Ligand Complex on the Size of Aqueous Metallo-Supramolecular Micelles

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• 作者：Pierre Guillet ; Charles-André ; Fustin ; Bas G. G. Lohmeijer ; Ulrich S. Schubert ; Jean-Franç ; ois Gohy
• 刊名：Macromolecules
• 出版年：2006
• 出版时间：August 8, 2006
• 年：2006
• 卷：39
• 期：16
• 页码：5484 - 5488
• 全文大小：280K
• 年卷期：v.39,no.16(August 8, 2006)
• ISSN：1520-5835

文摘

A library of metallo-supramolecular block copolymers has been synthesized, and the micellizationbehavior of those copolymers in water has been studied. A series of amphiphilic block copolymers composed ofpoly(styrene) and poly(ethylene oxide) joined by a bis(terpyridine)ruthenium complex were prepared. The micellesformed from these copolymers were characterized by AFM and TEM. The results evidence that the classicalscaling laws relating the micelle size to the size of the hydrophobic block are not valid for metallo-supramolecularcopolymers. This different behavior is due to electrostatic repulsions between the charged and bulky metal-ligand complexes present at the core-corona interface. If those repulsions are screened by increasing the ionicstrength during micelle formation, the classical behavior is observed.