AAU-ETD AAU-ETD
 

Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
Faculty of Science >
Thesis - Chemistry >

Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2605

Title: SYNTHESIS OF LOW BANDGAP ALTERNATING COPOLYMERS BASED ON FLUORENE-QUINOXALINE AND BENZOTHIADIAZOLE UNITS
Authors: ENDALE, MULUGETA
Advisors: WENDIMAGEGN MAMMO (Prof.)
Keywords: chemistry
LOW BANDGAP ALTERNATING COPOLYMERS
Copyright: 9-Jul-2010
Date Added: 4-May-2012
Publisher: AAU
Abstract: Donor/Acceptor-Copolymers, as so-called “low-band-gap” π-conjugated polymers, have been widely investigated and applied in different areas such as organic photovoltaics (OPVs), organic light emitting diodes (OLEDs) and organic field effect transistors (OFETs). Due to the attractive features of those functional organic polymer materials such as light weight, flexibility and low cost of production they have attracted recent interest in research development. In the course of this project, the synthesis of polyfluorene copolymers was attempted. Monomers based on quinoxaline, namely, 5,8-bis-(5-bromo-thiophen- 2-yl-2,3-bis(4-octyloxyphenyl)quinoxaline was successfully synthesized. Two copolymers, namely, poly[5-(5-(9,9-bis-[2-(2-methoxy-ethoxy)-ethyl]-7-methyl-9H- fluoren-2-yl}-thiophen-2-yl)-8-(5-methyl-thiophen-2-yl)-2,3-bis-(4-octyloxyphenyl)- quinoxaline] and poly[5-(5-(7-(7-(9,9-bis-[2-(2-methoxy-ethoxy)-ethyl]-9H-fluoren- 2-yl)-benzo[1,2,5]thiadiazol-4-yl)-9,9-bis-[2-(2-methoxy-ethoxy)-ethyl]-9H-fluoren- 2-yl)-thiophen-2-yl)-2,3-bis-(4-octyloxy-phenyl)-8-thiophen-2-yl-quinoxaline]. Were prepared with a palladium(0)-catalyzed Suzuki-coupling polymerization reaction and the polymers were characterized ix by NMR, Uv-Vis a
URI: http://hdl.handle.net/123456789/2605
Appears in:Thesis - Chemistry

Files in This Item:

File Description SizeFormat
246761.52 kBAdobe PDFView/Open

Items in the AAUL Digital Library are protected by copyright, with all rights reserved, unless otherwise indicated.

 

  Last updated: May 2010. Copyright © Addis Ababa University Libraries - Feedback