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

Gang Ye, Yuru Liu, Mustapha Abdu-Aguye, Maria A. Loi, Ryan C. Chiechi*

*Corresponding author for this work

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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.

Original languageEnglish
Pages (from-to)4689-4696
Number of pages8
JournalACS Omega
Volume5
Issue number9
DOIs
Publication statusPublished - 10-Mar-2020

Keywords

  • 2,5-FURANDICARBOXYLIC ACID
  • KETONE)S
  • COPOLYMERIZATION
  • SUBSTITUTION
  • POLYMERS
  • MONOXIDE

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