Facile syntheses of dioxythiophene-based conjugated polymers by direct C-H arylation

Haichao Zhao, Ching Yuan Liu, Shyh Chyang Luo, Bo Zhu, Tsai Hui Wang, Hsiu Fu Hsu, Hsiao Hua Yu

研究成果: 雜誌貢獻期刊論文同行評審

70 引文 斯高帕斯(Scopus)

摘要

Various substituted dioxythiophenes bearing 3,4-propylenedioxythiophenes (ProDOT) and 3,4-ethylenedioxythiophene (EDOT) moieties successfully undergo Pd-catalyzed direct C-H arylation to yield π-conjugated polymers. The effects of palladium catalysts, phosphine ligands or additives, and functional groups on this facile polycondensation approach are investigated. Polymers from alkoxy-substituted ProDOT are synthesized with reasonable molecular weight (M n = 6100-9600) and low PDI (1.3-1.9). Four substituted EDOT with alkoxy or protected functional groups also undergo direct C-H arylation polycondensation to yield corresponding polymers. The obtained polydioxythiophenes exhibit UV-vis absorptions ranging from 480 to 590 nm, and these conjugated polymers are electroactive and reversibly switched between the oxidized and neutral states upon applying potentials.

原文???core.languages.en_GB???
頁(從 - 到)7783-7790
頁數8
期刊Macromolecules
45
發行號19
DOIs
出版狀態已出版 - 9 10月 2012

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