Preparation and Properties of Hyperbranched Polymers Having Charge-Transporting Groups from A2 + B3 Monomer Systems

DOI Web Site 1 Citations 42 References
  • SATO Moriyuki
    Department of Material Science, Faculty of Science and Engineering, Shimane University
  • NAGASHIMA Keisuke
    Department of Material Science, Faculty of Science and Engineering, Shimane University
  • YAMAGUCHI Isao
    Department of Material Science, Faculty of Science and Engineering, Shimane University

Bibliographic Information

Other Title
  • Ａ２＋Ｂ３モノマー系からの電荷輸送性基含有ハイパーブランチポリマーの合成および性質
  • A2 B3 モノマーケイ カラ ノ デンカ ユソウセイキ ガンユウ ハイパーブランチ ポリマー ノ ゴウセイ オヨビ セイシツ

Search this article

Abstract

Novel A2+B3 type charge-transporting hyperbranched (HB) polymers having 2,5-diphenyl-1,3,4-oxadiazole units in the interiors and carbazole rings at the terminals were prepared and their photoluminescent (PL) and electrochemical properties were examined. The structures of the HB polymers were confirmed from FT-IR and 1H NMR spectroscopy. The HB polymers with high molecular weights, high degrees of branching (DB) (98%<), amorphous properties, and good solubilities in organic solvents were obtained at feed molar ratios of A2/B3>3/2. The UV-vis and PL spectra of the HB polymers in chloroform solution and in solid displayed absorption and emission maxima in the bluish violet region. Cyclic voltammetry (CV) indicated that the HB polymers show reversible peaks only in the reduction cycle. The luminescence quamtum yields of the HB polymers tend to be higher with polymers obtaind at feed molar ratios of A2/B3≤1.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 63 (10), 656-662, 2006

    The Society of Polymer Science, Japan

Citations (1)*help

See more

References(42)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top