Synthesis and characterization of luminescent poly(ester-imide) derivatives constituted of alternating spirobifluorene moiety

Ya Lan Wen, Yun-Hwei Shen, Shaw Bing Wen, Kun Lung Chen, Mou Yung Yeh, Fung Fuh Wong

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A new category of luminescent poly(ester-imide)s derivatives based on spirobifluorene rings in the main chain was synthesized from 2,6-bis(4-hydroxybenzylidine)cyclohexanone (BC) derivatives and diimide-dicarboxylic acid (DIDA) containing spirobifluorene moiety. The structure of the polymer was confirmed by elemental and spectral analyses. The various characteristics of the resulting polymers including optical properties, solubility, thermal analysis, and X-ray diffraction analysis were determined and discussed. The new polymers showed relatively high glass-transition temperatures (about 200 °C) and good thermal stability. Two polymers emitted blue-greenish light with photoluminescence (PL) emission maxima around 400-600. nm and the electron affinity of new polymers was estimated as 2.75-2.84. eV. Cyclic voltammetry displayed that both conjugated polymers had reversible oxidation and irreversible reduction, making them n-type electroluminescent materials.

Original languageEnglish
Pages (from-to)644-649
Number of pages6
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume43
Issue number4
DOIs
Publication statusPublished - 2012 Jul 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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