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Faculty for Biology, Chemistry, and Earth Sciences

Macromolecular Chemistry I:

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Lang, A.S.; Kogler, F.R.; Sommer, M.; Wiesner, U.; Thelakkat, M.: Semiconductor Dendritic-Linear Block Copolymers by Nitroxide Mediated Radical Polymerization, Macromolecular Rapid Communications, 30(14), 1243-1248 (2009) -- DOI: 10.1002/marc.200900203
Key words: B4
The first synthesis of a semiconductor hybrid diblock copolymer comprised of p-type dendritic and n-type linear blocks by nitroxide mediated radical polymerization (NMRP) is reported. A triphenylamine (TPA) bearing second generation polyether dendron [G2]-OH has been functionalized with an alkoxyamine and, subsequently, perylene bisimide acrylate (PerAcr) was polymerized to obtain a hybrid block copolymer, [G2]-b-PPerAcr. The hybrid block copolymer structure is supported by 1H NMR and size exclusion chromatography. Furthermore, the novel materials were studied by UV-vis absorption spectrometry, photoluminescence, cyclic voltammetry, differential scanning calorimetry and thermogravimetry analysis.
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