Photo-Cross-Linkable Polymeric Optoelectronics Based on the [2 + 2] Cycloaddition Reaction of Cinnamic Acid

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• 作者：Korwin M. Schelkle ; Markus Bender ; Sebastian Beck ; Krischan F. Jeltsch ; Sebastian Stolz ; Johannes Zimmermann ; R. Thomas Weitz ; Annemarie Pucci ; Klaus Müllen ; Manuel Hamburger ; Uwe H. F. Bunz
• 刊名：Macromolecules
• 出版年：2016
• 出版时间：March 8, 2016
• 年：2016
• 卷：49
• 期：5
• 页码：1518-1522
• 全文大小：362K
• ISSN：1520-5835

文摘

We report the synthesis of cinnamic acid-functionalized conjugated polymers, which are cross-linked via [2 + 2] cycloaddition by UV illumination, reducing their solubility. The cross-linking reaction was investigated by a combination of FTIR and optical spectroscopy, and an optimum condition for the solubility modulation of thin films, a major challenge in the solution-phase fabrication of layered optoelectronic devices, was reached. As proof of concept, OLEDs were fabricated, using these conjugated polymers as emissive layers.