Design and Application of Amphiphilic Polymeric Supports for Micellar Catalysis |
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Authors: | Thomas Kotre M Tobias Zarka Jens O Krause Michael R Buchmeiser Ralf Weberskirch Oskar Nuyken |
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Institution: | 1. Lehrstuhl für Makromolekulare Stoffe, TU München, Lichtenbergstr. 4, D-85747 Garching, Germany;2. Institut für Analytische Chemie und Radiochemie, Universität Innsbruck, Innrain 52a, A-6020 Innsbruck, Austria |
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Abstract: | In this contribution, the synthesis and application of amphiphilic poly(2-oxazoline)s with covalently bound transition metal catalysts for reactions in aqueous media is described. In the first example, bipyridine moieties were introduced via living ring-opening polymerization of functionalized oxazoline monomers and the resulting block copolymers were used as macroligands for ATRP (atom transfer radical polymerization) using Cu(I)Br as active metal species. Furthermore, the fixation of a chiral biphosphane and its use for enantioselective hydrogenation of enamides is presented as well as the fixation of a ruthenium catalyst. The latter one is used for polymerization of diethyl dipropargylmalonate (DEDPM), and represents the first example of an alkyne polymerization using a ruthenium catalyst. In the case of the polymers stable latex particles were obtained |
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Keywords: | ATRP enantioselective hydrogenation metathesis micellar catalysis poly(acetylene)s |
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