Synthesis, magnetic, and optoelectronic properties of poly(triphenylamine-alt-phenylenevinylene)s

Yong Jin Pu, Minoru Soma, Eishun Tsuchida, Hiroyuki Nishide

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Conjugated polymers alternatively involving m-phenylenevinylene or p-phenylenevinylene and a triphenylamine moiety in the main chain were synthesized via a Wittig-Horner-type polycondensation of 4-diformyl-4′,4″-dimethyl-triphenylamine or 4-diformyl-4′,4″-dimethoxy-triphenylamine with m-xylene-bis(diethylphosphonate) or p-xylene-bis(diethylphosphonate). A high glass-transition temperature (ca. 120 °C) and thermal stability (5% weight loss at temperatures greater than 450 °C) were observed for all polymers. These polymers, especially poly(methyltriphenylamine-alt-p-phenylenevinylene), fluoresced a strong green color under UV irradiation, with a quantum efficiency of 50% for their chloroform solutions. Cyclic voltammetry showed a relatively low ionization potential (5.18-5.44 eV) for the polymers. These results suggest that these polymers satisfied the requisites of polymer materials for a single-layer light-emitting diode. The aminium radical derived from the oxidation of poly(triphenylamine-alt-m-phenylenevinylene) satisfied both non-Kekule-type π-conjugation and ferromagnetic connectivity of the unpaired electrons and displayed a multiplet ground state.

Original languageEnglish
Pages (from-to)4119-4127
Number of pages9
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume38
Issue number22
DOIs
Publication statusPublished - 2000 Nov 15

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Optoelectronic devices
Polymers
Xylene
Ionization potential
Conjugated polymers
Polycondensation
Chloroform
Chlorine compounds
Quantum efficiency
Ground state
Cyclic voltammetry
Light emitting diodes
Thermodynamic stability
Irradiation
Color
Oxidation
Electrons
Temperature

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Synthesis, magnetic, and optoelectronic properties of poly(triphenylamine-alt-phenylenevinylene)s. / Pu, Yong Jin; Soma, Minoru; Tsuchida, Eishun; Nishide, Hiroyuki.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 38, No. 22, 15.11.2000, p. 4119-4127.

Research output: Contribution to journalArticle

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