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Authors
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Heuken, M. ; Komber, H. ; Erdmann, T. ; Senkovskyy, V. ; Kiriy, A. ; Voit, B.
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Title
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Fullerene-Functionalized DonorAcceptor Block Copolymers through Etherification as Stabilizers for Bulk Heterojunction Solar Cellsheterojunction solar cells
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Date
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30.04.2012
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Number
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32702
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Abstract
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A new synthetic method for the covalent linking of fullerenes to polymers is introduced. The Bingel-reaction was used to prepare bromine-functionalized fullerene building blocks that could be covalently linked to hydroxyl groups of model copolymers by the cesium carbonate promoted Williamson ether synthesis. Subsequently, block copolymers with a second block based on styrene and hydroxystyrene or hydroxyethyl methacrylate could be synthesized with a poly(3-hexylthiophene)TEMPO macroinitiator through NMRP. Fullerene derivatives were linked to these polymers in a controlled manner and donoracceptor block copolymers with high fullerene contents of near 50 wt % were achieved.
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Publisher
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Macromolecules
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Wikidata
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Citation
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Macromolecules 45 (2012) 4101-4114
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DOI
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https://doi.org/10.1021/ma300473w
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Tags
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polymer photovoltaic cells organic photovoltaics diblock copolymers regioregular poly(3-hexylthiophene) radical polymerization facile synthesis cesium salts morphology efficient polythiophene
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