Synthesis and Properties of Metallo-Supramolecular Poly(p-phenylene ethynylene)s

Synthesis and Properties of Metallo-Supramolecular Poly(p-phenylene ethynylene)s

The use of metal−ligand binding as the driving force for the self-assembly polymerizations of a ditopic monomer offers a facile route to the preparation of metallo-supramolecular polymers. We report, herein, the utilization of this approach for the polymerization of a conjugated macromonomer that wa...

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Veröffentlicht in:Macromolecules 2006-01, Vol.39 (2), p.651-657
Hauptverfasser: Knapton, Daniel, Rowan, Stuart J, Weder, Christoph
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Sprache:eng
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Applied sciences
Exact sciences and technology
Inorganic and organomineral polymers
Physicochemistry of polymers
Preparation
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Rowan, Stuart J
Weder, Christoph
description The use of metal−ligand binding as the driving force for the self-assembly polymerizations of a ditopic monomer offers a facile route to the preparation of metallo-supramolecular polymers. We report, herein, the utilization of this approach for the polymerization of a conjugated macromonomer that was derived by functionalizing a low-molecular-weight poly(2,5-dialkoxy-p-phenylene ethynylene) core with 2,6-bis(1‘-methylbenzimidazolyl)pyridine (Mebip) ligands on the two terminal positions. The supramolecular polymerization of this macromonomer with equimolar amounts of Zn2+ or Fe2+ resulted in polymers, which exhibit appreciable mechanical strength, but due to their self-assembly ability offer the ease of processing of low-molecular-weight compounds. The optical and thermomechanical properties of the new materials were investigated by a variety of analytical techniques, including ultraviolet−visible and photoluminescence spectroscopy, dynamic mechanical thermoanalysis, and thermogravimetric analysis.
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subjects Applied sciences
Exact sciences and technology
Inorganic and organomineral polymers
Physicochemistry of polymers
Preparation
title Synthesis and Properties of Metallo-Supramolecular Poly(p-phenylene ethynylene)s
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