TY - CONF A1 - Krüger, Simone T1 - Untersuchungen des Degradationsprozesses von Polyolefinen bei verschiedenen Recyclingmethoden durch Chemilumineszenz und IR-Spektroskopie T2 - Umwelttagung der Gesellschaft Deutscher Chemiker 1998 CY - Karlsruhe, Germany DA - 1998-09-27 PY - 1998 AN - OPUS4-7262 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone T1 - Chemiluminescence of conjugated polymers T2 - International Workshop on Practical Applications of Chemiluminescence at the Oxidation of Chemical Systems CY - Smolenice, Slovakia DA - 1998-11-02 PY - 1998 AN - OPUS4-7263 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone T1 - Chemi- und Thermolumineszenz-Untersuchungen von konjugierten Polymeren T2 - Vortragsreihe "Moderne Probleme der Physikalischen Chemie" im Institut für Physikalische Chemie der Freien Universität Berlin CY - Berlin, Germany DA - 1998-12-11 PY - 1998 AN - OPUS4-7264 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone T1 - Untersuchungen zur Chemi- und Thermolumineszenz von konjugierten Polymeren T2 - Disputation im Rahmen des Promotionsverfahrens am Institut für Physikalische Chemie der Freien Universität Berlin CY - Berlin, Germany DA - 1999-05-25 PY - 1999 AN - OPUS4-7265 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Goering, Harald A1 - Stark, Wolfgang A1 - Bayerl, H. A1 - Brinkmann, P. T1 - Thermoanalytische Untersuchungen zur Phenolharzhärtung unter hohem Druck - Ein Weg zur Optimierung der Nachtemperung T2 - 3rd International Thermoset Conference CY - Iserlohn, Deutschland DA - 2005-04-21 KW - Post curing KW - High pressure DSC KW - DMA KW - Reaction kinetic KW - Phenolic resin PY - 2005 SP - 107 EP - 114 PB - Fachhochschule Südwestfalen - Hochschule für Technik und Wirtschaft CY - Iserlohn AN - OPUS4-7452 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Goering, Harald A1 - Stark, Wolfgang A1 - Bayerl, H. A1 - Brinkmann, P. T1 - Thermo Analytical Investigations of Phenol Moulding Compound Curing - Potential for Post-Cure Optimisation T2 - 3rd International Thermoset Conference CY - Iserlohn, Germany DA - 2005-04-21 KW - Post curing KW - High pressure DSC KW - DMA KW - Reaction kinetic KW - Phenolic resin PY - 2005 SP - 219 EP - 225 PB - Fachhochschule Südwestfalen - Hochschule für Technik und Wirtschaft CY - Iserlohn AN - OPUS4-7453 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone T1 - Thermoanalytische Untersuchungen zur Phenolharzhärtung unter hohem Druck - ein Weg zur Optimierung der Nachtemperung T2 - 3. Internationale Duroplasttagung CY - Iserlohn, Germany DA - 2005-04-21 PY - 2005 AN - OPUS4-7354 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schartel, Bernhard A1 - Wachtendorf, Volker A1 - Krüger, Simone A1 - Hennecke, Manfred T1 - Chemiluminescence - An advanced method for small extent, early stages and accelerated testing of the thermooxidative degradation in polymers T2 - Makromolekulares Kolloquium Freiburg CY - Freiburg im Breisgau, Germany DA - 2000-02-24 PY - 2000 SP - 45 CY - Freiburg im Breisgau AN - OPUS4-2435 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Schartel, Bernhard A1 - Krüger, Simone A1 - Wachtendorf, Volker A1 - Hennecke, Manfred T1 - Chemiluminescence - A promising new testing method for plastic optical fibres? T2 - 7th International Plastic Optical Fibres Conference (POF-7) CY - Berlin, Germany DA - 1998-10-05 PY - 1998 SN - 3-905084-55-4 VL - 7 SP - 248 EP - 249 PB - AKM AG CY - Basel AN - OPUS4-2433 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Brademann-Jock, Kerstin A1 - Krüger, Simone A1 - Wachtendorf, Volker A1 - Goering, Harald T1 - Degradation effects of automotive coatings after weathering as detected by thermoluminescence T2 - 27th FATIPEC Congress CY - Aix-en-Provence, France DA - 2004-04-19 KW - Automobillacke KW - Bewitterung KW - Thermolumineszenz KW - Automotive coatings KW - Weathering KW - Thermoluminescence PY - 2004 VL - 3 SP - 1045 EP - 1050 PB - Association Francaise des Techniciens des Peintures, Vernis,Encres CY - Aix en Provence AN - OPUS4-4054 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kautek, Wolfgang A1 - Pentzien, Simone A1 - Krüger, Jörg A1 - König, E. ED - Kautek, W. ED - König, E. T1 - Laser cleaning of ancient parchments T2 - LACONA I CY - Heraklion, Crete, Greece DA - 1995-10-04 PY - 1997 SN - 3-901025-68-5 VL - 18 SP - 69 EP - 78 PB - Mayer CY - Klosterneuburg AN - OPUS4-11784 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Daminelli-Widany, Grazia A1 - Pentzien, Simone A1 - Hertwig, Andreas A1 - Krüger, Jörg T1 - Influence of film thickness on laser ablation of hydrogenated amorphous carbon films N2 - Single-pulse damage thresholds of hydrogenated amorphous carbon (a-C:H) films were measured for 8-ns laser pulses at 532-nm wavelength. Layer thicknesses from below the optical penetration depth to above the thermal diffusion length (60 nm–13 µm) were examined. After correction of the damage-threshold values for the fraction of energy effectively absorbed by the material, the damage threshold was found to increase linearly with the layer thickness, also for film thicknesses below the optical penetration depth of a-C:H. The threshold fluence reached the bulk value for a layer thickness equal to the thermal diffusion length. The thermal diffusion coefficient was obtained from fitting the experimental data. Several phenomena like graphitization, blistering, exfoliation, and ablation were observed for different fluence regimes and film thicknesses. PY - 2006 DO - https://doi.org/10.1007/s00339-005-3460-5 SN - 0340-3793 VL - 83 IS - 1 SP - 89 EP - 94 PB - Springer CY - Berlin AN - OPUS4-12022 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Schulze, Rolf-Dieter A1 - Brademann-Jock, Kerstin A1 - Friedrich, Jörg Florian ED - Pershin, L. T1 - Introduction of irregularities into plasma polymers by radiative and auto-oxidative processes T2 - 17th International Symposium on Plasma Chemistry (ISPC-17) CY - Toronto, Canada DA - 2005-08-07 PY - 2005 SP - 1(?) EP - 6(?) CY - Toronto AN - OPUS4-11943 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone T1 - Kontrolle von Aushärtungsverlauf und Aushärtegrad mittels Thermoanalyse - DSC T2 - Rohima - Die deutsche FVK-Messe - Marktplatz Forschung CY - Leipzig, Germany DA - 2006-06-27 PY - 2006 AN - OPUS4-12527 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Simone A1 - Schulze, Rolf-Dieter A1 - Brademann-Jock, Kerstin A1 - Swaraj, Sufal A1 - Friedrich, Jörg Florian T1 - Charakterisierung von Plasmapolymeren mittels Thermolumineszenzmessungen N2 - Dünne, mit einem gepulsten Plasma hergestellte Polymerschichten wurden untersucht. Diese Plasmapolymere sollten eine chemisch besser definierte Struktur haben, weil der Anteil an rein chemisch polymerisiertem Produkt während der Plasma-aus-Zeit steigen sollte, während der Anteil an Schichtbildung, der innerhalb der kurzen Plasmapulse durch Monomerfragmentierung und statistische Polyrekombination erzeugt wird, zurückgedrängt wird. Der Monomerfragmentierungsprozeß ist im kontinuierlich brennenden Plasma (cw-Mode) demgegenüber der Hauptprozeß. Neben der Anwendung der klassischen Element- und Bindungsanalysentechnik XPS (X-ray Photoelectron Spectroscopy) wurden hier die Schichten auch mittels Thermolumineszenz untersucht. Defekte und Strukturanomalitäten in Polymeren sollten mit dieser Methode charakterisiert werden können. Untersuchungsobjekte waren funktionalgruppentragende Plasmapolymerschichten, die biosensorische oder biokompatible Funktionen besitzen oder als Haftvermittler in Metall-Polymercompositen eingesetzt werden. Translated Abstract Characterization of Plasmapolymers by Thermoluminescence Thin plasma polymer films were deposited using the pulsed plasma (pp) mode. These plasma polymers should possess a more chemically regular structure because of the lower monomer fragmentation during the short plasma pulses and the chemical chain propagation during the plasma-less periods than those produced by the conventional continuous-wave (cw) mode. In addition to the use of the classic thin film characterization method XPS the method of thermoluminescence was applied to characterize defects and structural specifics in the polymer films produced by pp or cw-plasma mode. The thermoluminescence method was applied to functional groups-carrying plasma polymer layers, which are used in medical technology for forming biocompatible and bioactive coatings or in metal-polymer composites as adhesion-promoting interlayers. KW - Plasmapolymere KW - Thermolumineszenz KW - X-ray PY - 2006 DO - https://doi.org/10.1002/vipr.200600287 SN - 0947-076X SN - 1522-2454 VL - 18 IS - 3 SP - 32 EP - 37 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-12514 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone T1 - Analysis of weathering effects in automotive coatings by thermoluminescence T2 - XXVIIIth FATIPEC Congress CY - Budapest, Hungary DA - 2006-06-12 PY - 2006 AN - OPUS4-12548 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone T1 - Screening the weathering stability of automotive coatings by chemiluminescence T2 - XXVIIIth FATIPEC Congress CY - Budapest, Hungary DA - 2006-06-12 PY - 2006 AN - OPUS4-12549 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Simone A1 - Schulze, Rolf-Dieter A1 - Brademann-Jock, Kerstin A1 - Swaraj, Sufal A1 - Friedrich, Jörg Florian T1 - Characterisation of plasma polymers by thermoluminescence N2 - Thin plasma polymer films were deposited using the pulsed plasma mode. These plasma polymers should possess a more regular structure than those produced by the conventional continuous-wave (cw) mode, because of lower monomer fragmentation caused by the plasma pulses and the chemical chain propagation during the plasmaless (free!) periods. The thermoluminescence method was applied to functional groups carrying plasma polymer layers which are used in medical technology. Examples are formation of biocompatible, biosensoric and bioactive coatings or in metal polymer composites such as adhesion-promoting interlayers. In addition to the use of the conventional X-ray Photoelectron Spectroscopy for thin film characterization, the new method of thermoluminescence was applied to characterize undesired defects and structural specifics produced in the polymer films by pp or cw plasma mode. The main areas of focus were oxygen-containing groups produced by post-plasma oxygen introduction via auto-oxidation, oxidation of implemented unsaturations and trapped radical sites known as typical irregular structures in plasma polymers. KW - Plasma polymers KW - Thermoluminescence KW - Structure KW - Defects KW - Pulsed plasma KW - Continuous-wave plasma PY - 2006 DO - https://doi.org/10.1016/j.surfcoat.2005.12.003 SN - 0257-8972 VL - 201 IS - 3-4 SP - 543 EP - 552 PB - Elsevier Science CY - Lausanne AN - OPUS4-12818 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kautek, Wolfgang A1 - Pentzien, Simone A1 - Rudolph, Pascale A1 - Krüger, Jörg A1 - König, E. T1 - Laser interaction with coated collagen und cellulose fibre composites: fundamentals of laser cleaning of ancient parchment manuscripts and paper N2 - Laser cleaning of delicate biological composite materials such as ancient parchment manuscripts from the 15th and 16th century and printed paper from the 19th century is demonstrated with an ultraviolet excimer pulsed laser at 308 nm. Laser fluence levels must stay below the ablation and destruction threshold of the parchment or paper substrate, and have to surpass the threshold of the contaminant matter. Foreign layers to be removed must exhibit a higher optical density than the artifact substrates. Synthetic carbonaceous dirt modelled by water-soluble black crayons showed a characteristically weak featureless laser-induced plasma spectroscopy spectrum near the noise limit. It turned out that laser-induced plasma spectroscopy is of limited use in monitoring halting points (or etch-stops) because it relies on the destruction not only of the laterally inhomogenously distributed contaminant but also of pigment phases on a microscopically rough parchment substrate. Laser-induced fluorescence spectroscopy, however, promises to be a valuable non-destructive testing technique for etch-stop monitoring. KW - Laser KW - Parchment KW - Papery KW - Spectroscopy KW - Laser cleaning PY - 1998 SN - 0169-4332 SN - 1873-5584 VL - 127-129 SP - 746 EP - 754 PB - North-Holland CY - Amsterdam AN - OPUS4-11516 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rudolph, Pascale A1 - Pentzien, Simone A1 - Krüger, Jörg A1 - Kautek, Wolfgang A1 - König, E. T1 - Laserreinigung von Pergament und Papier PY - 1998 SN - 0933-4017 IS - 6 SP - 396 EP - 402 PB - Callwey CY - München AN - OPUS4-11598 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Simone A1 - Stark, Wolfgang A1 - Goering, Harald A1 - Michel, Uwe T1 - Thermoanalyse der Phenolharzhärtung - Ein Weg zur Optimierung der Nachtemperung N2 - Angesichts der spezifischen Bedeutung der Aushärtung von Phenolharzen für ihre Eigenschaften als Ingenieurwerkstoffe besteht großes Interesse an deren quantitativer Charakterisierung. Mittels DSC-Messungen unter hohem Druck (HP-DSC) kann die Vernetzungsreaktion der Phenolharzformmassen durch die Unterdrückung der Verdampfung niedermolekularer Substanzen ohne störende Überlagerungen verfolgt werden. Mittels verschiedener Vernetzungsgrade können die Einflussparameter der Aufheizrate und der Nachtemperung optimiert werden. Die Messergebnisse ermöglichen eine Modellierung der Reaktionskinetik mit dem Ziel einer verbesserten Prozessführung und Qualitätskontrolle in der industriellen Praxis. KW - Phenolharze KW - Thermische Analyse KW - DMA KW - DSC KW - Aushärtung KW - Glasübergang PY - 2006 SN - 0025-5300 VL - 48 IS - 11-12 SP - 556 EP - 561 PB - Carl Hanser Verlag CY - München AN - OPUS4-13802 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wurster, R. A1 - Pentzien, Simone A1 - Conradi, Andrea A1 - Krüger, Jörg T1 - Characterization of laser-generated microparticles by means of a dust monitor and SEM imaging N2 - Nanosecond laser (1064 nm wavelength) cleaning of artificially soiled paper as a model sample simulating a real-world artwork was performed. During the cleaning process, the ejection of particles was monitored in situ by means of a dust monitor (8 size classes, ranging from 0.3 µm to >2 µm) and ex situ using a mini-cascade impactor (MKI, 5 stages). The cleaning result was analyzed by scanning electron microscopy (SEM) considering possible laser-induced damages to the substrate. Size distributions of emitted particles were measured depending on the processing parameters: laser fluence, F, and pulse number per spot, N. High numbers of large (>2 µm) particles were collected by the mini-cascade impactor indicating a gas dynamical liftoff process. Obviously, these particles were not affected by the laser-matter interaction. The different methods (SEM, MKI, and dust monitor) are compared with respect to their usefulness for a proper interpretation of the cleaning results. PY - 2006 DO - https://doi.org/10.1155/2006/31862 SN - 0278-6273 SN - 1476-3516 VL - 2006 IS - Article ID 31862 SP - 1 EP - 5(?) PB - Harwood Academic Publ. CY - London AN - OPUS4-14467 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -