TY - GEN A1 - Hasenstab, Andreas A1 - Krause, Martin A1 - Lutz, J. A1 - Hillemeier, B. A1 - Rieck, C. T1 - Niederfrequente Ultraschall-Echo-Verfahren und Bohrwiderstandsmessung zur Untersuchung von Holzbauteilen T2 - DGZfP Jahrestagung CY - Rostock, Deutschland DA - 2005-05-02 KW - ZfP an Holzbauteilen KW - Fehlstellen KW - Minderdicken KW - Ultraschallecho-Experimente an Probekörpern KW - Ultraschall-Echo KW - Fäulnis KW - Bauwesen PY - 2005 SN - 3-931381-64-1 N1 - Serientitel: Berichtsband / Deutsche Gesellschaft für zerstörungsfreie Prüfung e. V. – Series title: Berichtsband / Deutsche Gesellschaft für zerstörungsfreie Prüfung e. V. IS - 94-CD SP - 1(?) EP - 11(?) PB - DGZfP CY - Berlin AN - OPUS4-11960 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Segebade, Christian A1 - Lutz, G. J. A1 - Schmitt, B. F. T1 - Bestimmung von Pd, Ag, Pt und Au in Elektrolytkupfer durch Aktivierung mit hochenergetischen Photonen PY - 1979 SN - 0016-1152 VL - 296 SP - 263 EP - 265 PB - Springer CY - Berlin AN - OPUS4-9201 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Segebade, Christian A1 - Lutz, G. J. T1 - Aktivierungsanalytische Untersuchungen an Keramik (Terra Sigillata) PY - 1976 SN - 0342-4510 VL - 7 SP - 4,1 EP - 4,20 PB - Habelt CY - Bonn AN - OPUS4-8561 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Panik, F. A1 - Drosdol, J. A1 - Auersch, Lutz T1 - Anwendungsorientierte Untersuchungsmethoden des Lenkverhaltens von Kraftfahrzeugen T2 - VDI-Schwingungstagung CY - Düsseldorf, Deutschland DA - 1980-10-02 PY - 1980 SN - 3-18-090381-3 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte IS - 381 SP - 89 EP - 98 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-9293 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Reimers, Peter A1 - Lutz, G. J. A1 - Segebade, Christian T1 - The Non-Destructive Determination of Gold, Silver and Copper by Photon Activation Analysis of Coins and Art Objects PY - 1977 SN - 0003-813X SN - 1475-4754 SN - 0365-6004 VL - 19 IS - 1 SP - 167 EP - 172 PB - Blackwell CY - Oxford AN - OPUS4-8783 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, B.V.K.J. A1 - Fechler, N. A1 - Falkenhagen, Jana A1 - Lutz, J.-F. T1 - Controlled folding of synthetic polymer chains through the formation of positionable covalent bridges N2 - Covalent bridges play a crucial role in the folding process of sequence-defined biopolymers. This feature, however, has not been recreated in synthetic polymers because, apart from some simple regular arrangements (such as block co-polymers), these macromolecules generally do not exhibit a controlled primary structure—that is, it is difficult to predetermine precisely the sequence of their monomers. Herein, we introduce a versatile strategy for preparing foldable linear polymer chains. Well-defined polymers were synthesized by the atom transfer radical polymerization of styrene. The controlled addition of discrete amounts of protected maleimide at precise times during the synthesis enabled the formation of polystyrene chains that contained positionable reactive alkyne functions. Intramolecular reactions between these functions subsequently led to the formation of different types of covalently folded polymer chains. For example, tadpole (P-shaped), pseudocyclic (Q-shaped), bicyclic (8-shaped) and knotted (α-shaped) macromolecular origamis were prepared in a relatively straightforward manner. KW - Copolymerization KW - Chain folding KW - SEC KW - NMR KW - FT-IR KW - LAC KW - MALDI PY - 2011 DO - https://doi.org/10.1038/NCHEM.964 SN - 1755-4330 SN - 1755-4349 VL - 3 SP - 234 EP - 238 PB - Nature Publishing Group CY - London, UK AN - OPUS4-23888 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nöll, G. A1 - Daub, J. A1 - Lutz, M. A1 - Rurack, Knut T1 - Synthesis, spectroscopic properties, and electropolymerization of azulene dyads N2 - Four azulene dyads have been synthesized and studied by spectroscopic and electrochemical methods. A triarylamine, a boron-dipyrromethene (BDP or BODIPY), a porphyrin, and an isoalloxazine moiety have been linked to an extended π electron system at the 2-position of azulene, leading to the dyads 1–4, respectively. For the synthesis of 1–4, first 2-(4-ethynyl-phenyl)azulene (EPA) was prepared, which was further reacted with the halogenated chromophores by Pd-catalyzed cross-coupling reactions. The dyads 1–4 exhibit strong absorption bands in the visible range, which are dominated by the absorption spectra of the individual subchromophores. Fluorometric studies of 2–4 revealed that after excitation of the subchromophoric unit attached to the parent azulene moiety, quenching mainly through energy transfer to azulene is effective, whereas possible charge-transfer interactions play only a minor role. Potentiodynamic oxidation of the dyads 1–4 leads to the formation of polymer films, which are deposited at the electrode. The polymer film derived from 1 was further characterized by spectroelectrochemistry. During positive doping of poly-1, a strong absorption band appears at 13,200 cm–1, which is typical for triarylamine radical cations. This band is overlapping with a broad absorption band in the low-energy region that might be caused by charge-transfer interactions within the polymer. KW - Azulen KW - Elektropolymerisation KW - Energietransfer KW - Farbstoffe KW - Fluoreszenz PY - 2011 DO - https://doi.org/10.1021/jo200080v SN - 0022-3263 SN - 1520-6904 VL - 76 IS - 12 SP - 4859 EP - 4873 PB - American Chemical Society CY - Washington, DC AN - OPUS4-23987 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Segebade, Christian A1 - Lutz, George J. T1 - Die Untersuchung einiger Bodenlagerungseinflüsse auf die Zusammensetzung von römischer Keramik (Terra sigillata) PY - 1981 SN - 0344-5089 VL - 5 SP - 69 EP - 83 PB - Staatliche Museen CY - Berlin AN - OPUS4-33359 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Segebade, C. A1 - Lutz, G. J. A1 - Weise, Hans-Peter A1 - Fusban, H.-U. T1 - Quantitative Evaluation of Interference Reactions in Photon Activation Analysis PY - 1981 SN - 0134-0719 SN - 0022-4081 VL - 67 IS - 1 SP - 205 EP - 214 PB - Elsevier Sequoia CY - Lausanne AN - OPUS4-33361 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lutz, J.-F. A1 - Kubowicz, St. A1 - Baussard, J.-F. A1 - Thünemann, Andreas A1 - v. Berlepsch, H. A1 - Laschewsky, A. T1 - Multicompartment Micelles Obtained via the Self-Assembly of a Well-Defined Triblock Macrosurfactant Prepared by RAFT Polymerization KW - Micelles KW - Living polymerization KW - RAFT KW - Block copolymers PY - 2005 SN - 0032-3934 VL - 46 IS - 2 SP - 297 EP - 298 PB - American Chemical Society CY - Newark, NJ AN - OPUS4-10534 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -