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Synthesis, Optical and Electrochemical Properties of High-Quality Cross-Conjugated Aromatic Polyketones.


ABSTRACT: This paper describes the synthesis and characterization of three new aromatic polyketones with repeating units based on 2,2'-(2,5-dihexyl-1,4-phenylene) dithiophene (PTK), 2,2'-(9,9-dihexyl-9H-fluorene-2,7-diyl)dithiophene (PFTK), and 4,7-bis(3-hexylthiophen-2-yl)benzo[c][1,2,5]thiadiazole (PBTK). These polymers were obtained with a one-pot Suzuki-Miyaura cross-coupling-promoted homopolymerization to afford high-quality, defect-free polymers. Experimental and theoretical studies were applied to investigate their optical and electrical properties. The cross-conjugated nature of aromatic polyketones imparts excellent thermal stability. Exposure to acid converts the cross-conjugation to linear-conjugation, enabling the dynamic tuning of optoelectronic properties.

SUBMITTER: Ye G 

PROVIDER: S-EPMC7066649 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Synthesis, Optical and Electrochemical Properties of High-Quality Cross-Conjugated Aromatic Polyketones.

Ye Gang G   Liu Yuru Y   Abdu-Aguye Mustapha M   Loi Maria A MA   Chiechi Ryan C RC  

ACS omega 20200228 9


This paper describes the synthesis and characterization of three new aromatic polyketones with repeating units based on 2,2'-(2,5-dihexyl-1,4-phenylene) dithiophene (PTK), 2,2'-(9,9-dihexyl-9<i>H</i>-fluorene-2,7-diyl)dithiophene (PFTK), and 4,7-bis(3-hexylthiophen-2-yl)benzo[<i>c</i>][1,2,5]thiadiazole (PBTK). These polymers were obtained with a one-pot Suzuki-Miyaura cross-coupling-promoted homopolymerization to afford high-quality, defect-free polymers. Experimental and theoretical studies we  ...[more]

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