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Herein, we demonstrate an effective fine-tuning of carrier transport properties in polymer semiconductors by loading fluorine atoms on polymeric π-systems. To a thienoisoindigo-based conjugated backbones, we introduced dithiophenethene, difluorodithiophenethene, difluorodiphenylethene, and tetrafluorodiphenylethene units affording D−A copolymers, PTIDTE, PTIFDTE, PTIDFPE, and PTITFPE, respectively...
Two donor–acceptor copolymers, PTVTBT and PTVTBO, using the highly π-extended (E)-2-(2-(thiophen-2-yl)vinyl)thiophen as an electron-rich unit and benzodiathiazole or benzoxadiazole as an electron-deficient one, were designed and synthesized via a Pd-catalyzed Stille-coupling method. The copolymers possess high thermal stability, broad absorption, low band gap, and good film-forming ability. Meanwhile...
A series of well-defined azide polymers, poly(styrene-co-4-vinylbenzyl azide) with different content of azide groups, were synthesized by RAFT polymerization. The single-chain polymeric nanoparticles were then facilely prepared via single polymer chain collapse and intramolecular crosslinking reaction of the azide polymer in a dilute solution at room temperature under UV irradiation within several...
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