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1	Preparation of novel bitumen nanocomposites out of polymer-modified montmorillonite nanoparticles Belke, Eduard 02 August 2017 (has links) To extend the time of service of asphalt roads modified montmorillonite nanoparticles were incorporated into bitumen with the aim of creating a gas barrier inside the bitumen which slows down the diffusion of oxygen through the bitumen. For this purpose [montmorillonite/alkyl-quat-primer] adducts ([MMT/PEI(nkD)xQyR]) were fabricated in which single-montmorillonite platelets were coated by a ultrathin polymer film by reacting montmorillonite particles with poly(ethylenimine) based polycations. The alkyl-quat-primer polymers were synthesised by adding ammonium groups and alkyl chains to hyperbranched poly(ethylenimine)s in a solvent-free reaction. Adducts with fully intercalated polymers were obtained when the polymers were reacted with an aqueous solution of [MMT/CTAB] or by mixing the polymers with montmorillonite and CTAB in an aqueous solution. The polymers replaced the CTAB in an intermediate formed [MMT/CTAB] adduct and adhered strongly to the montmorillonite due to a cooperative electrostatic interaction between the positively charged ammonium moieties of the macromolecules and the negatively charged montmorillonite surface. [MMT/alkyl-quat-primer] and [MMT/CTAB] adducts were incorporated via a single screw extruder into polymer- and non-polymer-modified bitumina to create bitumen-nanocomposites. Composites prepared under optimised conditions exhibited an adduct network inside the bitumen at adduct concentrations larger 5 wt.% and when non-polymer modified bitumina were modified. The aspect ratio of the incorporated montmorillonite platelets depended strongly on the adduct composition and the used bitumen, and was with [MMT/PEI(10kD)10Q80R10] adducts were very high (~ 300 - 1000) but with [MMT/PEI(10kD)10Q60R14] and [MMT/CTAB] adducts considerably lower (~ 30 - 90). Montmorillonite Bitumen Composites Polyethylenimine 35.52 - Präparative Organische Chemie ddc:540
2	Synthese von Tetragastrin-CC-1065-Konjugaten und verwandten Verbindungen für eine selektive Krebstherapie / Synthesis of Tetragastrin-CC-1065-conjugates and related compounds for a selective cancer therapy Chen, Xiong 04 July 2006 (has links) No description available. 540 Chemie Mathematics and Computer Science CC-1065 Tetragastrin DNA-Binder Krebstherapie CC-1065 Tetragastrin DNA-binding cancer therapy 35.52 S
3	Palladium-katalysierte Dominoreaktionen mit Bicyclopropyliden in flüssiger und an fester Phase Nüske, Hanno 30 October 2000 (has links) No description available. 540 Chemie Mathematics and Computer Science 35.52 SUD000 SUE000 SUS000
4	Synthese und biologische Evaluierung neuartiger Acronycin-Duocarmycin-Hybride / Synthesis and Biological Evaluation of Novel Acronycine-Duocarmycin Hybrid Heins, Arne 15 December 2011 (has links) No description available. 000 Allgemeines Wissenschaft Chemistry Acronycin Duocarmycin Hybrid-Naturstoff acronycine duocarmycine hybrids natural product 35.52
5	Final Elucidation of the Absolute Configuration of Hormaomycin - Total Synthesis of Hormaomycin and Analogs / Endgültige Strukturauklärung des Hormaomycins und Totalsynthese von Hormaomycin sowie Analoga Zlatopolski, Boris 05 November 2003 (has links) No description available. 540 Chemie Mathematics and Computer Science Aminosaeuren Peptidsynthese Schutzgruppen Strukturaufklaerung Naturstoffe Amino acids Peptide Synthesis Protective Groups Structure Elucidation Natural Compounds 35.52
6	Palladium(II)-katalysierte Domino-Reaktionen zur enantioselektiven Synthese von Confluentin, Daurichromen- und Rhododaurichromansäure Untersuchungen zur Synthese von Aglaroxin A / Palladium(II) catalysed Domino Reactions for the enantioselective Synthesis of Confluentin, Daurichromenic and Rhododaurichromanic acid Studies towards the Synthesis of Aglaroxin A Böckemeier, Henning 11 April 2011 (has links) No description available. 540 Chemie Chemistry Domino-Reaktion Palladium Katalyse entantioselektiv Rhododendron dauricum HIV domino reaction palladium catalysis enantioselective Rhododendron dauricum HIV 35.52 Präparative Organische Chemie S
7	VERSUCHE ZUR SYNTHESE VON PROTOILLUDAN-SESQUITERPENEN ÜBER UMLAGERUNGSREAKTIONEN: (±)-CERAPICOL, (±)-STERPUREN UND (±)-CERATOPICANOL / SYNTHESIS OF PROTOILLUDANE-SESQUITERPENENES VIA REARRANGEMENT ROUTES: (±)-CERAPICOL, (±)-STERPURENE AND (±)-CERATOPICANOL El-Hachach, Nizar 30 October 2002 (has links) No description available. 540 Chemie Mathematics and Computer Science Umlagerung Sesquiterpene Sterpuren Cerapicol Ceratopicanol rearrangement sesquiterpenes sterpurene cerapicol ceratopicanol 35.50 35.60 35.66 35.52 SU 000: Organische Chemie
8	Design und Synthese neuer flüssigkristalliner Substanzen mit zentraler Bicyclo[3.1.0]hexaneinheit / Design and synthesis of novel liquid crystalline substances containing a Bicyclo[3.1.0]hexane core moiety Langer, Rainer 07 May 2003 (has links) No description available. 540 Chemie Mathematics and Computer Science 35.52 Präparative Organische Chemie
9	Die Zirconiumalkoxid-katalysierte Aldol-Tishchenko-Reaktion von Keton-Aldolen / The zirconium alkoxide-catalyzed aldol-Tishchenko reaction of ketone aldols Hansch, Markus 27 January 2005 (has links) No description available. 540 Chemie Mathematics and Computer Science Alkohole Aldolreaktion Diastereoselektivität Enantioselektivität Tishchenko-Reduktion Zirconium alcohols aldol reaction diastereoselectivity enantioselectivity Tishchenko reduction zirconium 35.52
10	Aufbau von Bausteinen zur Synthese von Spinosynanaloga / Development of building blocks for the synthesis of Spinosyn analogues Scheffer, Timo 21 February 2012 (has links) No description available. 540 Chemie SUD 900 Chemistry 35.50 35.51 35.52 35.63 48.54 48.63

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