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Yuping Yuan and Tsuyoshi Michinobu Energy level tuning of polythiophene derivative by click chemistry-type postfunctionalization of side-chain alkynes Journal of Polymer Science Part A: Polymer Chemistry 49

Version of Record online: 11 NOV 2010 | DOI: 10.1002/pola.24443

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A polythiophene derivative substituted with the electron-rich alkynes was subjected to the “click chemistry”-type postfunctionalization by high-yielding TCNE/TCNQ additions. UV–vis–NIR spectra and electrochemical measurements suggested the formation of donor–acceptor chromophores in quantitative yields. As more acceptor molecules were added, both HOMO and LUMO levels of the polymers were more significantly lowered.

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