Dokumente Fakultät für Chemie (inkl. GAUSS) nach Titel
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Janus Kopf Liganden in heterobimetallischen Komplexen
(2010-11-26)This thesis includes studies on the Janus-head ligand di(benzothiazole-2-yl)phosphane. An improved synthesis and modifications of the ligand are reported. Additionally different mono- and ... -
Kinetics and Mechanism of Cu-Catalyzed Atom Transfer Radical Polymerization
(2015-10-28)The kinetics and mechanism of Cu-mediated atom transfer radical polymerization (ATRP) were investigated with particular emphasis on the ATRP deactivation rate coefficient, k_deact . The method of pulsed laser polymerization ... -
Kinetics and Modeling of the Radical Polymerization of Acrylic Acid and of Methacrylic Acid in Aqueous Solution
(2014-01-15)The radical polymerization of methacrylic acid, acrylic acid and acrylamide in aqueous solution has been investigated. Detailed kinetic models for both acrylic acid, AA, and methacrylic acid, MAA, have been developed ... -
Kinetics of free radical homo- and copolymerisations investigated with pulsed laser methods
(2024-03-06)Free-radical polymerisation is the most important polymerisation process due to its simplicity and robustness. It is therefore necessary to understand the kinetics of the involved reactions in order to plan a polymerisation, ... -
Kinetik der konventionellen radikalischen und der RAFT-Polymerisation an Nanopartikeloberflächen
(2016-07-22)This thesis provides new insights into the kinetic and mechanistic aspects of the con-ventional radical and the reversible addition–fragmentation chain transfer (RAFT) polymerization from the surface of silica nanopartic ... -
Kinetik der radikalischen Polymerisation von Monomeren mit mesogener Seitengruppe in isotroper und anisotroper Lösung
(2018-03-19)This work targets the radical polymerization of reactive mesogens in isotropic and anisotropic solution. Kinetic coefficients were determined via pulse-laser polymerization in conjunction with size-exclusion chromatography ... -
Kinetik der Reaktionen des Hydroxylradikals mit ungesättigten Kohlenwasserstoffen in einer Lavaldüsenexpansion
(2004-04-06)The investigation of hydroxyl radical reactions with unsaturated hydrocarbons like ethyne, ethylene, propene and isoprene at low temperatures plays a significant role for the understanding ... -
Kinetik radikalischer Polymerisationen ionischer Monomere in wässriger Lösung: Spektroskopische Analyse und Modellierung
(2016-07-20)This work targets the radical polymerization of ionic monomers in aqueous solution. Rate coefficients were determined by pulse-laser polymerization in conjunction with size-exclusion chromatography (PLP–SEC), with near-infrared ... -
Kinetik von Atom-Transfer Radikalischen Polymerisationen bis zu hohen Drücken
(2012-11-02)Atom-transfer radical polymerization (ATRP) has been studied up to 2500 bar via online VIS/NIR-spectroscopy to monitor the evolution of both CuII concentration and monomer conversion. ATRP-equilibrium constants have been ... -
Kinetische und thermodynamische Untersuchungen der Hochdruck-Copolymerisation von Ethen mit (Meth)Acrylsäureestern
(2005-03-18)Kinetic and thermodynamic aspects of the high-pressure copolymerization of ethene and (meth)acrylic acid(esters) have been studied in wide ranges of temperature and pressure. Reactivity ... -
Klassifizierung polarer Metall-Kohlenstoff-Bindungen in hauptgruppenmetallorganischen Verbindungen mittels experimenteller Elektronendichteanalyse
(2020-10-20)In general, organometallic compounds are characterized by their metal-carbon bond. This is characterized by its polar nature. Examples of this class of compounds are Grignard reagents and organolithium compounds such as ... -
Konkurrierende ferroische Ordnungsparameter in SrTiO3: Domänenverhalten und Schaltverhalten
(2014-09-01)Strontium titanate (SrTiO3) is a well-known member of the perovskite family. It exhibits an antiferrodistortive phase transition at 105 K leading to a tetragonal paraelectric phase with three different structural domains. At ... -
Konzeptualisierung des Themas "Nano" für den Chemieunterricht
(2016-11-23)Nanotechnology is considered as one of the 21st century’s key technologies that can be helpful in solving some of the greatest challenges of our time. Because of this technology’s distinct influence on our future, it is ... -
Kristallographische Analyse von pathologischen Kristallen, Periplasmischen dömane von ligandfreien CitA Sensor Kinasen und PDI-verwandten Chaperone
(2006-11-08)The current work reports on developing methods to elucidate crystal structure of nonmerohedrally twinned protein crystals and analysis of structures of different proteins that mediate signal ... -
Die Kristallstruktur der α-Amylase A aus dem hyperthermophilen Bakterium Thermotoga maritima MSB8
(2003-04-03)α-Amylases catalyze the hydrolytic cleavage of α-glycosidic linkages in starch, glycogen and a number of other related compounds and play an important role in the metabolism of plants, ... -
Kristallstrukturen der Aldose-Reduktase und der C2A-Domäne von Rabphilin3A sowie Überprüfungen neuer Restraints.
(2006-11-06)The high resolution (0.82 Å) structure of Aldose Reductase (an enzyme implicated in the polyol pathway) is presented. The aim of the work was a careful inspection of the model with particular ... -
Kristallstrukturen der C2B-Domäne von Rabphilin-3A und der PP2C-ähnlichen Phosphatase tPphA von Thermosynechococcus elongatus BP-1
(2006-09-28)The first part of this thesis deals with the x-ray crystal structure of the C2B domain of Rabphilin-3A, which includes part of the linker region between the C2A and C2B domain. The second ... -
Kristallstrukturuntersuchungen zum Katalyse- und Regulationsmechanismus der Tyrosin-regulierten 3-Deoxy-D-arabino-Heptulosonat-7-Phosphat-Synthase aus Saccharomyces cerevisiae
(2003-08-06)The ability to synthesize the aromatic amino acids tyrosine, phenylalanine and tryptophan is confined to prokaryotes, yeast, algae and plants. The first common step in biosynthesis for ... -
Kupfer- und palladiumkatalysierte N H- und C H-Bindungsfunktionalisierungen zur effizienten Synthese von Heterocyclen
(2011-05-20)Several approaches for the synthesis of substituted indoles, (benz)oxazoles and oxazolines using copper- and palladium-catalyzed reactions are examined. A copper-catalyzed synthesis of ... -
Laserspektroskopische Untersuchungen zur Dynamik von ionischen Flüssigkeiten mit Hilfe molekularer Sonden
(2011-08-24)Ionic liquids have been studied by transient absorption spectroscopy. Relaxation processes after photo excitation of molecular probes were used as an indicator to study the microscopic ...