Browsing Naturwissenschaften, Mathematik und Informatik by Referee "Buback, Michael Prof. Dr."
Now showing items 41-55 of 55
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Spektroskopische Untersuchungen zur Kinetik und Produktbildung bei Reaktionen von zyklischen und offenkettigen Kohlenwasserstoff-Radikalen
(2006-10-25)Reactions of pure and partly oxygenated hydrocarbon radicals are of major interest in two different fields: On the one hand tailored polymerisation products are of daily use in different ... -
Messung und Modellierung der Initiatoreffektivität organischer Peroxide in der Ethen-Hochdruckpolymerisation
(2006-05-31)In this thesis the initiator efficiency of assymetric dialkyl peroxides (tert-Butyl-O-O-R1) and diverse tert-alkyl peroxyesters (R2-(C=O)-O-O-R3) was determined in the high-pressure ... -
Pyrazolliganden mit Imin-Seitenarmen und ihre zweikernigen Palladium(II)- und Nickel(II)-Komplexe: neue bimetallische Katalysatoren für die Olefinpolymerisation
(2006-01-10)A series of compartmental pyrazole/imine dinucleating ligands (L) with various backbone substituents and different steric bulk of the appended aryl imine groups has been prepared. With ... -
Detailed Investigations into the Propagation and Termination Kinetics of Bulk Homo- and Copolymerization of (Meth)Acrylates
(2005-08-16)Three aspects of free-radical polymerization have been addressed: (i) the propagation rate in acrylate/methacrylate copolymerizations, (ii) the chain-length dependence of the termination ... -
Modellierung der Kinetik und Mikrostruktur radikalischer Polymerisationen bei hohen Drücken und Temperaturen
(2005-08-16)The kinetics of the homopolymerization of butyl acrylate at high pressure and temperature was investigated. Branches, terminal double bonds and the amount of trimer were analyzed quantitatively ... -
Bestimmung und Modellierung der Initiatoreffektivität von Diazenen in der Ethen-Hochdruckpolymerisation
(2005-07-29)In this thesis the initiator efficiency of diazenes (azoalkanes), R-N=N-R', in the high-pressure ethene polymerization was determined in a continuously stirred tank reactor. The initiator ... -
Versuche zur Erzeugung des Pentacyclopropylcyclopentadienyl-Kations, und Synthese von Cyclopropylierten Oligoenen, Carbo- und Heterocyclen
(2004-12-27)The objective of this dissertation on the one hand was to generate the pentacyclopropylcyclopentadienyl cation under stable cation conditions and its characterization by low-temperature ... -
Synthesis, Structure and Reactivity of Manganese Complexes Supported by Carbon or Nitrogen Donor Ligands
(2004-11-23)In this thesis, N-heterocyclic carbene, b-diketiminate and diamide ligands have been employed as supporting moieties for manganese compounds. The experimental results demonstrate that steric ... -
Intramolekulare Titan-vermittelte Aminocyclopropanierung als Zugang zu N-Benzyl-4-alkyl-2-azabicyclo[3.1.0]hexanen - Synthese von tri- und tetrasubstituierten Alkenen durch Palladium-katalysierte Kreuzkupplung von Alkin-Titan-Komplexen
(2004-11-02)Alkene- and alkadiene-substituted formamides were intramolecularly amino-cyclopropanated. Furthermore, titanium-complexes of unsaturated compounds were cross-coupled with severa bromobenzenes via ... -
Reaktionskinetik von Verbrennungsprozessen in der Gasphase: Spektroskopische Untersuchungen der Geschwindigkeit, Reaktionsprodukte und Mechanismen von Elementarreaktionen und die Modellierung der Oxidation von Kohlenwasserstoffen mit detaillierten Reaktionsmechanismen
(2004-01-07)The combustion of hydrocarbon fuels is still the major energy source. The optimisation of combustion processes with respect to the degree of efficiency and pollutant formation are current ... -
Femtosekunden-Spektroskopie zur Protontransfer-Dynamik im elektronisch angeregten Zustand von 1.8-Dihydroxy-9.10-Anthrachinon
(2003-10-17)This thesis investigates the connection between the non-radiative relaxation dynamics of 1.8-dihydroxy-9.10-anthraquinone (1.8-DHAQ) and the intramolecular proton-transfer in the first ... -
Photon-Echo-Spektroskopie zur Dynamik der Solvatation in Wasser und an Lipidmembran-Wasser-Grenzschichten
(2002-07-02)The thesis focuses on the molecular mechanisms of ultrafast solvation at the interface of synthetic phospholipid-membranes. For the first time, photon-echo spectroscopy is used as a tool ... -
Erzeugung von Radikalen aus teilhalogenierten Methan-, Alkohol- und Etherderivaten und deren Reaktionen sowie thermische und chemische Aktivierung von 1-Ethinyl-1-methylcyclopropan in der Gasphase
(2002-05-15)Partially fluorinated hydrocarbons, ethers and alcohols are discussed as substitutes of HCFC in the context of air pollution, thus motivating kinetic studies of the involved radicals for ... -
Erzeugung, Nachweis und Reaktionen reiner, teiloxidierter und substituierter Kohlenwasserstoffradikale in der Gasphase
(2002-05-15)Products and rates of the reactions of 1,1,1-Trichlorethane, Isobutylchloride, Di-t-Butyl-Peroxide, t-Butyl-Peroxy-Pivalate and Dimethoxymethane with Fluorine atoms are examined in ... -
Chain-transfer kinetics for free-radical homo- and coplymerizations of styrene and methyl methacrylate in supercritical carbon dioxide
(2001-07-25)Chain-transfer kinetics have been studied for styrene and MMA homo- and copolymerizations in bulk and in solution of supercritical CO2 (40 wt % scCO2). Three chain-transfer agents (CTAs) ...