New Conjugated Polymers Based on Benzodifuranone and Diketopyrrolopyrrole (inbunden)
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Format
Inbunden (Hardback)
Språk
Engelska
Antal sidor
232
Utgivningsdatum
2012-06-21
Förlag
Disserta Verlag
Illustrationer
Black & white illustrations
Antal komponenter
1
Komponenter
HC runder Rücken kaschiert
ISBN
9783954250127
New Conjugated Polymers Based on Benzodifuranone and Diketopyrrolopyrrole (inbunden)

New Conjugated Polymers Based on Benzodifuranone and Diketopyrrolopyrrole

Inbunden Engelska, 2012-06-21
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In this work synthesis and properties of novel Pi-conjugated polymers containing diketopyrrolopyrrole (DPP) and benzodifuranone (BZDF) chromophores in the main chain, which are suitable as active materials in optoelectronic applications, are developed and investigated. The polymers were synthesized via metal-mediated or -catalyzed Suzuki, Stille, Sonogashira and Yamamoto cross-coupling polycondensation reactions or by using oxidative and anodic electropolymerization. The resulting polymers were characterized using gel permeation chromatography, NMR-, UV/vis-, and fluorescence spectroscopy, mass spectroscopy, and cyclic voltrammetry. The polymers exhibit low HOMO-LUMO band gaps and reversible oxidation and reduction processes, which suggests a strong donor-acceptor character. Electrochromic properties were found upon oxidation and reduction. Additionally, a series of cross-linked conjugated microporous polymers was synthesized. They exhibit high surface area and micropores in nanometer range. Furthermore, the influence via variation of electron donor and acceptor on the HOMO-LUMO band gaps of the conjugated polymers was studied.
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Övrig information

Kai Zhang, geboren in China, studierte Chemie an Universitt zu Kln. Im Juli 2007 schloss er sein Studium mit einer Diplomarbeit ber neuartige konjugierte Polymere im Arbeitskreis von Prof. Dr. Bernd Tieke am Department fr Chemie der Universitt zu Kln ab. Anschlieend promovierte er im gleichen Arbeitskreis in der Fachrichtung Physikalische Chemie (Polymerchemie/Makromolekulare Chemie). Die Promotion wurde Ende 2010 erfolgreich abgeschlossen. Weiterhin wurde ein Patent erteilt und eine Anzahl von Publikationen verffentlicht.