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Triaryl-1,4-diamine based polysquaraines: effect of co-solvent and monomer insertion on optoelectronic properties

Abstract : A series of N1,N4-didodecyl-N1,N4-diphenylbenzene-1,4-diamine based polysquaraines have been synthesized under micro-wave irradiation in the absence of any catalyst. The effect of solvent of polymerization, on the squaric acid catenation (1,2 and 1,3 linkages), has been studied and polysquaraines integrating linear chain in their backbone have been advantageously obtained by using di-functional alcohol during the polymerization. Such obtained polymers exhibit a broad emission with a quantum yield up to 18%. The latter were then tested into OLED devices exhibiting a promising white emission.
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Guillaume Garbay, Tiphaine Tailliez, Eleni Pavlopoulou, Jules Oriou, Mickael Bezirdjoglou, et al.. Triaryl-1,4-diamine based polysquaraines: effect of co-solvent and monomer insertion on optoelectronic properties. Polymer Chemistry, Royal Society of Chemistry - RSC, 2018, 11, pp.1288-1292. ⟨10.1039/C7PY02056B⟩. ⟨hal-01692055⟩

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