Synthesis of Polyfluorenes Having Alkylimine Side Chains at 9-Position and Their Optoelectronic Properties

• HAYASHI Shotaro

  Department of Applied Chemistry, National Defense Academy

• KOIZUMI Toshio

  Department of Applied Chemistry, National Defense Academy

Bibliographic Information

Other Title

• アルキルイミンを9位に有するポリフルオレンの合成とその光・電気化学物性
• アルキルイミンを9位に有するポリフルオレンの合成とその電気化学物性
• アルキルイミン オ 9イ ニ ユウスル ポリフルオレン ノ ゴウセイ ト ソノ デンキ カガク ブッセイ

Abstract

A novel polyfluorene having an N-alkylimine group at 9-position, P1, was synthesized through Suzuki-Miyaura coupling polymerization with bis(pinacolato)diboron. This polymer showed good solubility in common organic solvents such as dichloromethane, chloroform, tetrahydrofuran and toluene. Moreover, this polymer exhibited good film-forming ability. The alternating copolymer, P2, was also synthesized by Suzuki-Miyaura coupling polymerization with 9,9-dioctylfluorene-2,7-diboronic acid (1,3-propandiol) ester. These polymers exhibited characteristic optical behaviors. The absorption spectrum of P2 showed intramolecular charge transfer interaction due to the existence of the imine electron-acceptor moiety at 9-position and showed green fluorescence both in organic solvent and in film. Interestingly, the absorption spectra of P1 film were bathochromically shifted relative to those measured in solution.

Journal

• KOBUNSHI RONBUNSHU

  KOBUNSHI RONBUNSHU 69 (6), 309-312, 2012

  The Society of Polymer Science, Japan

Keywords

• Conjugated Polymers
• Fluorene
• Imine
• Charge Transfer

Details

• CRID: 1390282681502308224
• NII Article ID: 10030773009
• NII Book ID: AN00085011
• DOI: 10.1295/koron.69.309
• COI: 1:CAS:528:DC%2BC38Xht1Klu7bE
• ISSN: 18815685
• ISSN: 03862186
• NDL BIB ID: 023787391
• Web Site: http://id.ndl.go.jp/bib/023787391
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023787391
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed