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New paper in Collaboration with Sébastien Clément from the University of Montpellier on the synthesis of conjugated semiconducting polymers.

Publié le 30 avril 2019
Rédigé par Eric Weverbergh
A poly(3-hexylthiophene)-block-perfluoropolyether-block-poly(3-hexylthiophene) (P3HT-b-PFPE-b-P3HT) triblock copolymer was synthesized by copper(I)-catalyzed alkyne–azide cycloaddition. The copolymer was unequivocally characterized by size exclusion chromatography, mass spectrometry and nuclear magnetic resonance (NMR). ...
New paper in Collaboration with Sébastien Clément from the University of Montpellier on the synthesis of conjugated semiconducting polymers.
New paper in Collaboration with Sébastien Clément from the University of Montpellier on the synthesis of conjugated semiconducting polymers.

 

Chevrier et al, Synthetic Metals 252 (2019) 127-134.

A poly(3-hexylthiophene)-block-perfluoropolyether-block-poly(3-hexylthiophene) (P3HT-b-PFPE-b-P3HT) triblock copolymer was synthesized by copper(I)-catalyzed alkyne–azide cycloaddition. The copolymer was unequivocally characterized by size exclusion chromatography, mass spectrometry and nuclear magnetic resonance (NMR). Such a triblock copolymer exhibits i) a good thermal stability with no significant weight loss until 320 °C under air, ii) a glass transition of -50 °C due to the soft PFPE segment and iii) a melting peak arising from P3HT at 236 °C. The UV–vis absorption spectrum exhibits a similar absorption profile to that of pure P3HT with a vibronic structure. Analysis of terpolymer thin films by atomic force microscopy imaging and grazing incidence wide-angle X-ray scattering reveals the formation of P3HT crystallites and an “edge-on” orientation of the polymer chains towards the substrate. Preliminary photovoltaic studies on blends of this triblock copolymer combined with a fullerene derivative indicate that the devices using P3HT-b-PFPE-b-P3HT show an almost similar power conversion efficiency to commercial P3HT.