Reference : Thermally induced coupling of poly(thiophene)-based block copolymers prepared by Grignar...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/129674
Thermally induced coupling of poly(thiophene)-based block copolymers prepared by Grignard metathesis polymerization: a straightforward route toward highly regioregular multiblock conjugated copolymers
English
Ouhib, Farid [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Desbief, Simon [University of Mons (UMons) and Materia Nova > > Service de Chimie des Matériaux Nouveaux > >]
Lazzaroni, Roberto [University of Mons (UMons) and Materia Nova > > Service de Chimie des Matériaux Nouveaux > >]
De Winter, Julien [University of Mons (UMons) > > Mass Spectrometry Research Group > >]
Gerbaux, Pascal [University of Mons (UMons) > > Mass Spectrometry Research Group > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
11-Sep-2012
Macromolecules
American Chemical Society
45
17
6796-6806
Yes (verified by ORBi)
International
0024-9297
Washington
DC
[en] solar cell
[en] We report on a convenient and simple process to prepare highly regioregular poly(thiophene)-based multiblock copolymers by a novel thermally induced coupling reaction. Diblock copolymers of 3-hexylthiophene (3HT) and 2,5-dibromo-3-(2-(2-tetrahydropyranyl-2-oxy)ethyl)thiophene (THPET) end-capped by a nickel complex (Br-P3HT-b-PTHPET-Ni(dppp)Br) are first prepared using Ni(dppp)Cl2 as catalyst at 30 °C by Grignard metathesis polymerization (GRIM process). The coupling of these α-bromo, ω-Ni(dppp)Br telechelic diblock copolymers then occurs by heating the solution of the copolymer at 80 °C for a few hours without adding any additional reagent. Reactions are complete in only 10 min when heating the copolymer at 120 °C using microwaves. The deprotection of the alcohol groups of PTHPET blocks allows further modifications such as the incorporation of acrylates by esterification. AFM analysis on thin films shows the influence of the nature of side chains (protected alcohol or acrylate), the molecular weight, and the architecture (diblock or multiblock) of the copolymer on the supramolecular organization of the polythiophene chains.
Center for Education and Research on Macromolecules (CERM)
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; The "Région Wallonne" in the frame of the SUNTUBE program ; The Interreg project ORGANEXT
Researchers
http://hdl.handle.net/2268/129674
10.1021/ma3009405
http://pubs.acs.org/doi/abs/10.1021/ma3009405

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