Synthesis, characterizations and properties of new copoly(aryl ether)s with alternate hole- and electron-transporting fluorophores

Yun Chen, Shiao Wen Hwang, Yun Hao Yu

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Three novel copol[y(aryl ether)s, consisting of alternate isolated hole-transporting (2,5-dihexyloxy-1,4-distyrylbenzene) and electron-transporting (p-quaterphenyl or aromatic 1,3,4-oxadiazole) segments, were synthesized from corresponding bis(phenol) and bis(fluofide) monomers by nucleophilic displacement reaction. These copolymers are soluble in common organic solvents and exhibit good thermal stability with 5% weight loss temperature above 400 °C in nitrogen atmosphere. The photoluminescent (PL) spectra and quantum yields of these copolymers are: dependent on the composition of the isolated fluorophores. The HOMO and LUMO energy levels of these copolymers have been estimated from their cyclic voltammograms. All the observations directly proved that the oxidation in copolymers starts at the hole transporting segments. Moreover, the electron and hole affinities can be enhanced simultaneously by introducing isolated hole-transporting and electron-transporting segments, in which p-quaterphenyl is more electron- affinitive than aromatic 1,3,4-oxadiazole chromophores.

Original languageEnglish
Pages (from-to)3827-3835
Number of pages9
Journalpolymer
Volume44
Issue number14
DOIs
Publication statusPublished - 2003 Jun 13

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Fluorophores
Ether
Ethers
Copolymers
Electrons
Quantum yield
Chromophores
Phenol
Organic solvents
Electron energy levels
Phenols
Thermodynamic stability
Nitrogen
Monomers
Oxidation
Chemical analysis
Temperature
1,3,4-oxadiazole

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics

Cite this

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abstract = "Three novel copol[y(aryl ether)s, consisting of alternate isolated hole-transporting (2,5-dihexyloxy-1,4-distyrylbenzene) and electron-transporting (p-quaterphenyl or aromatic 1,3,4-oxadiazole) segments, were synthesized from corresponding bis(phenol) and bis(fluofide) monomers by nucleophilic displacement reaction. These copolymers are soluble in common organic solvents and exhibit good thermal stability with 5{\%} weight loss temperature above 400 °C in nitrogen atmosphere. The photoluminescent (PL) spectra and quantum yields of these copolymers are: dependent on the composition of the isolated fluorophores. The HOMO and LUMO energy levels of these copolymers have been estimated from their cyclic voltammograms. All the observations directly proved that the oxidation in copolymers starts at the hole transporting segments. Moreover, the electron and hole affinities can be enhanced simultaneously by introducing isolated hole-transporting and electron-transporting segments, in which p-quaterphenyl is more electron- affinitive than aromatic 1,3,4-oxadiazole chromophores.",
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Synthesis, characterizations and properties of new copoly(aryl ether)s with alternate hole- and electron-transporting fluorophores. / Chen, Yun; Hwang, Shiao Wen; Yu, Yun Hao.

In: polymer, Vol. 44, No. 14, 13.06.2003, p. 3827-3835.

Research output: Contribution to journalArticle

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