Synthesis and characterization of soluble conjugated poly(p- phenylenevinylene) derivatives constituted of alternating pyrazole and 1,3,4-oxadiazole moieties

En Ming Chang, Shin Lin Huang, Cheng Tien Lee, Hui Chang Lin, Chun-Yen Chen, Yu Ying Huang, Shao Kai Lin, Fung Fuh Wong

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

New soluble poly(p-phenylenevinylene) derivatives with 1,3,4-oxadiazole and pyrazole rings along the main chain were synthesized by Heck coupling. The new conjugated polymers are soluble in common organic solvents as a result of the fully conjugated backbone with dodecyloxy side groups. The polymers show relatively high glass-transition temperatures (up to 160C) and good satisfactory thermal stability. Solutions of the polymers emit blue-greenish light with photoluminescence (PL) emission maxima around 490500 nm. The PL spectrum of the polymer's thin films, with a maximum at 515 nm, shows a red-shift (∼20 nm), with respect to the solution spectrum. Cyclic voltammetry reveals that both conjugated polymers have reversible oxidation and irreversible reduction, making them n-type electroluminescent materials. The electron affinity of the new polymers was estimated as 2.732.74 eV. The weight-average molecular weights (M w) of the new soluble polymers were in the range of 47904950.

Original languageEnglish
Pages (from-to)1355-1362
Number of pages8
JournalAustralian Journal of Chemistry
Volume62
Issue number10
DOIs
Publication statusPublished - 2009 Oct 23

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Polymers
Derivatives
Conjugated polymers
Photoluminescence
Electron affinity
Polymer films
Organic solvents
Cyclic voltammetry
Thermodynamic stability
Molecular weight
Thin films
Oxidation
pyrazole
poly(4-phenylenevinylene)
1,3,4-oxadiazole

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Chang, En Ming ; Huang, Shin Lin ; Lee, Cheng Tien ; Lin, Hui Chang ; Chen, Chun-Yen ; Huang, Yu Ying ; Lin, Shao Kai ; Wong, Fung Fuh. / Synthesis and characterization of soluble conjugated poly(p- phenylenevinylene) derivatives constituted of alternating pyrazole and 1,3,4-oxadiazole moieties. In: Australian Journal of Chemistry. 2009 ; Vol. 62, No. 10. pp. 1355-1362.
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abstract = "New soluble poly(p-phenylenevinylene) derivatives with 1,3,4-oxadiazole and pyrazole rings along the main chain were synthesized by Heck coupling. The new conjugated polymers are soluble in common organic solvents as a result of the fully conjugated backbone with dodecyloxy side groups. The polymers show relatively high glass-transition temperatures (up to 160C) and good satisfactory thermal stability. Solutions of the polymers emit blue-greenish light with photoluminescence (PL) emission maxima around 490500 nm. The PL spectrum of the polymer's thin films, with a maximum at 515 nm, shows a red-shift (∼20 nm), with respect to the solution spectrum. Cyclic voltammetry reveals that both conjugated polymers have reversible oxidation and irreversible reduction, making them n-type electroluminescent materials. The electron affinity of the new polymers was estimated as 2.732.74 eV. The weight-average molecular weights (M w) of the new soluble polymers were in the range of 47904950.",
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Synthesis and characterization of soluble conjugated poly(p- phenylenevinylene) derivatives constituted of alternating pyrazole and 1,3,4-oxadiazole moieties. / Chang, En Ming; Huang, Shin Lin; Lee, Cheng Tien; Lin, Hui Chang; Chen, Chun-Yen; Huang, Yu Ying; Lin, Shao Kai; Wong, Fung Fuh.

In: Australian Journal of Chemistry, Vol. 62, No. 10, 23.10.2009, p. 1355-1362.

Research output: Contribution to journalArticle

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AU - Huang, Shin Lin

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AU - Lin, Hui Chang

AU - Chen, Chun-Yen

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AU - Wong, Fung Fuh

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