Fullerene-Functionalized Donor鈥揂cceptor Block Copolymers through Etherification as Stabilizers for Bulk Heterojunction Solar Cells

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• 作者：Maria Heuken ; Hartmut Komber ; Tim Erdmann ; Volodymyr Senkovskyy ; Anton Kiriy ; Brigitte Voit
• 刊名：Macromolecules
• 出版年：2012
• 出版时间：May 22, 2012
• 年：2012
• 卷：45
• 期：10
• 页码：4101-4114
• 全文大小：776K
• 年卷期：v.45,no.10(May 22, 2012)
• ISSN：1520-5835

文摘

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)鈥揟EMPO macroinitiator through NMRP. Fullerene derivatives were linked to these polymers in a controlled manner and donor鈥揳cceptor block copolymers with high fullerene contents of near 50 wt % were achieved.