TY - CONF A1 - Hennecke, Manfred T1 - Photooxidation of PET and a Photoselective Effect T2 - 34th IUPAC International Symposium on Macromolecules CY - Prague, Czech Republic DA - 1992-07-13 PY - 1992 AN - OPUS4-11927 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Chemilumineszenz beim Abbau von Polymeren T2 - Gesellschaft Deutscher Chemiker, Ortsverband Harz CY - Clausthal-Zellerfeld, Germany DA - 2006-02-10 PY - 2006 AN - OPUS4-12148 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Plasmapolymerisierte dünne Schichten - Herstellung, Charakterisierung und Anwendungen T2 - Deutsches Kunststoff-Institut CY - Darmstadt, Germany DA - 1992-11-26 PY - 1992 AN - OPUS4-12149 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Innovation und Sicherheit im Staatsauftrag: Aus der Arbeit der BAM T2 - 67. Kolloquium für Wärmebehandlung, Werkstofftechnik, Fertigungs- und Verfahrenstechnik CY - Wiesbaden, Germany DA - 2011-10-13 PY - 2011 AN - OPUS4-24822 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Akkreditierung im Wandel T2 - 1. Nationale Akkreditierungskonferenz CY - Berlin, Germany DA - 2011-06-08 PY - 2011 AN - OPUS4-24823 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Chemiker im öffentlichen Dienst T2 - Jungchemikerforum der Gesellschaft Deutscher Chemiker an der Universität Kaiserslautern CY - Kaiserslautern, Germany DA - 2011-05-08 PY - 2011 AN - OPUS4-24824 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Nanoscience in der BAM T2 - Kolloquium am Institut für Mikromechanik (IMM) CY - Mainz, Germany DA - 2011-10-25 PY - 2011 AN - OPUS4-24825 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hennecke, Manfred T1 - Ressortforschung und Politikberatung N2 - Fast allen deutschen Bundesministerien sind Einrichtungen zugeordnet, die sie in der Erfüllung von Bundesaufgaben auf wissenschaftlicher Grundlage unterstützen. Die Vielfalt sowie die Art und der jeweilige Anteil der Aufgaben (insbesondere der Anteil der Forschung) haben dazu geführt, das es sehr unterschiedliche Typen von Ressortforschungseinrichtungen gibt. Viele dieser Einrichtungen erbringen in bedeutendem Umfang Dienstleistungen für Wirtschaft, Wissenschaft und Gesellschaft; alle stehen den Ministerien für Beratungsaufgaben unmittelbar zur Verfügung. Ihre Kompetenz stützt sich ganz wesentlich auf Forschung und Entwicklung und unterscheidet sie dadurch von anderen Bundesbehörden. PY - 2011 SN - 0303-2493 IS - 7/8 SP - 391 EP - 395 PB - BBSR CY - Bonn AN - OPUS4-24919 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Grußwort für die AG Ressortforschung T2 - Festakt zum 100-jährigen Gründungsjubiläum des Friedrich-Löffler-Instituts CY - Greifswald, Germany DA - 2010-10-10 PY - 2010 AN - OPUS4-24856 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Reference Materials for Material Science and Technology T2 - Conference of the IRMM "The Future of Reference Materials - Science and Innovation" CY - Geel, Belgium DA - 2010-11-23 PY - 2010 AN - OPUS4-24857 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Über Innovationen: Bedingungen, Förderndes, Bremsendes T2 - Festkolloquium der Deutschen Gesellschaft für Zerstörungsfreie Prüfung (DGZfP) CY - Berlin, Germany DA - 2011-01-14 PY - 2011 AN - OPUS4-24858 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Innovation und Normung: Kein Gegensatz, keine Selbstverständlichkeit T2 - Zenit Zentrum für Innovation und Technik in NRW CY - Mülheim an der Ruhr, Germany DA - 2010-05-14 PY - 2010 AN - OPUS4-24851 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Die BAM: Ressortforschungseinrichtung für Sicherheit in Technik und Chemie T2 - Bundesministerium für Wirtschaft und Technologie CY - Berlin, Germany DA - 2010-04-22 PY - 2010 AN - OPUS4-24852 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Innovation und Normung: Kein Gegensatz, keine Selbstverständlichkeit T2 - Kolloquium Institut für Leichtbau, Technische Universität Dresden CY - Dresden, Germany DA - 2010-06-17 PY - 2010 AN - OPUS4-24853 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Innovation und Normung: Kein Gegensatz, keine Selbstverständlichkeit T2 - Jahrestagung DGO, Deutsche Gesellschaft für Galvano- und Oberflächentechnik CY - Berlin, Germany DA - 2010-09-22 PY - 2010 AN - OPUS4-24854 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Innovation und Sicherheit im Staatsauftrag: Aus der Arbeit der BAM T2 - Rotary Club CY - Berlin, Germany DA - 2010-09-26 PY - 2010 AN - OPUS4-24855 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Die Unabhängigkeit der wissenschaftlichen Einrichtungen - eine Einschätzung T2 - Europäische Stakeholderkonferenz "Wie unabhängig kann Wissenschaft sein?!, Bundesinstitut für Risikobewertung CY - Berlin, Germany DA - 2012-11-20 PY - 2012 AN - OPUS4-27196 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Damerau, Thomas A1 - Hennecke, Manfred T1 - Photo- and thermo-oxidative stability of aromatic spiro-linked bichromophoric cross-shaped molecules N2 - An extensive investigation of the photostability and the thermo-oxidative stability is presented for 2,2,7,7-tetrakis(biphenyl-4-yl)-9,9-spirobifluorene and 2,2,4,4,7,7-hexakis(biphenyl-4-yl)-9,9-spirobifluorene. Both compounds are conjugated fully aromatic systems that are being discussed as active functional materials for a variety of advanced applications. The effect of atmosphere, sample thickness and preparation procedure on photo-oxidative degradation are investigated in detail by absorption and fluorescence spectroscopy. Distinct mechanisms are described in terms of relevant parameters such as the quantum yields of the photo-oxidation and the fluorescence. No oxidative degradation could be detected under nitrogen. In ambient air a strong decrease of the fluorescence performance is found due to effective quenching by defective chromophores. Chemiluminescence investigations were performed to characterise the thermo-oxidative behaviour in the temperature region between 300 and 450 K. It becomes clear that even a stable chemical structure such as the investigated aromatic system does not guarantee sufficient photostability with regard to light emitting properties. About this Journal PY - 2000 DO - https://doi.org/10.1039/b004931j SN - 1463-9076 SN - 1463-9084 VL - 2 IS - 20 SP - 4690 EP - 4696 PB - The Royal Soc. of Chemistry CY - Cambridge AN - OPUS4-1002 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Krüger, Simone A1 - Wachtendorf, Volker A1 - Hennecke, Manfred T1 - Excitation energy transfer of a bichromophoric cross-shaped molecule investigated by polarized fluorescence spectroscopy N2 - The excitation energy transfer (EET) of a bichromophoric cross-shaped molecule was investigated by stationary polarized fluorescence spectroscopy in the solid state. For this purpose 2,2[prime],7,7[prime]-tetrakis(biphenyl-4-yl)-9,9[prime]-spirobifluorene was embedded in a polymeric bisphenol-A-polycarbonate (PC) matrix. The dependence of the fluorescence on concentration and wavelength was determined. The role of the intermolecular and intramolecular EET is dealt with separately and discussed by means of the degree of polarization. The intermolecular excitation energy transfer is described in terms of a Förster transfer mechanism. The intramolecular transfer is prevented for the zero-point vibrational levels by the molecular cross-shaped structure, but is found for a wide range of wavelength, presumably based on vibrationally excited states. PY - 2000 DO - https://doi.org/10.1063/1.481620 SN - 0021-9606 SN - 1089-7690 VL - 112 IS - 22 SP - 9822 EP - 9827 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-1038 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Wachtendorf, Volker A1 - Hennecke, Manfred A1 - Schulz, Ulrich T1 - Chemilumineszenzuntersuchungen an PE-HD als Schnelltest für die Wirksamkeit von Stabilisatoren unter Bewitterung und für den Einfluß einer Chemikalienbehandlung T2 - 29. Jahrestagung der GUS CY - Pfinztal bei Karlsruhe, Deutschland DA - 2000-03-29 PY - 2000 SN - 3-9806167-6-2 SP - 10-1-10-12 CY - Pfinztal AN - OPUS4-1081 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lehmann, M. A1 - Schartel, Bernhard A1 - Hennecke, Manfred A1 - Meier, H. T1 - Dendrimers consisting of stilbene or distyrylbenzene building blocks synthesis and stability N2 - On the basis of Wittig-Horner reactions and protection group techniques compound 7 for the core and the components 9a-c and 11a-c for the dendrons were prepared and linked in the final step. The convergent synthesis yielded constitutionally and configurationally pure dendrimers (2a-c, 2a'-c') which consist of distyrylbenzene units. Their thermo-oxidative stability in the presence of air was studied by chemiluminescence and compared to the dendrimers 1 consisting of stilbene units. KW - Chemiluminescence KW - Dendrimers KW - Diphenylethylenderivate KW - Oxidation KW - Wittig reactions PY - 1999 DO - https://doi.org/10.1016/S0040-4020(99)00823-6 SN - 0040-4020 SN - 1464-5416 VL - 55 IS - 47 SP - 13377 EP - 13394 PB - Elsevier Science CY - Kidlington AN - OPUS4-1539 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Krüger, Simone A1 - Wachtendorf, Volker A1 - Hennecke, Manfred T1 - Chemiluminescence: A promising new testing method for plastic optical fibers N2 - The thermo-oxidative degradation of a polymeric optical cable is investigated by chemiluminescence, The results are reliable and reproducible. Two distinct processes are reported marked by a peak and a plateau behavior versus the time, respectively. Both processes are ruled by thermally activated processes. Beside the dependencies of temperature and time, the influence of absorbed water is discussed. Chemiluminescence is proposed as a promising candidate for a suitable testing method assessing the thermo-oxidative stability of plastic optical fibers and cables. it requires not more than a simple one-day testing procedure and has the advantage that it can be carried out even within the lo cv temperature ranges of the cables' intended use. KW - Chemiluminescence KW - Chemilumineszenz PY - 1999 DO - https://doi.org/10.1109/50.803022 SN - 0733-8724 SN - 1558-2213 VL - 17 IS - 11 SP - 2291 EP - 2296 PB - Institute of Electrical and Electronics Engineers CY - New York, NY AN - OPUS4-718 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Neuausrichtung einer Bundesanstalt unter den Bedingungen des "schlanken Staates" T2 - Tagung GOCh-Arbeitsgemeinschaft "Chemiker im öffentlichen Dienst" CY - Jena, Deutschland DA - 2000-10-02 PY - 2000 SP - 1(?) AN - OPUS4-899 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Kunze, Ralf A1 - Hennecke, Manfred A1 - Kettner, A. A1 - Wendorff, J. H. T1 - On the thermal behaviour and thermo-oxidative stability of liquid crystalline triphenylene compounds N2 - Columnar discotic materials are considered for applications in the area of photoconductivity and light-emitting diodes. A major requirement is their stability at elevated temperatures and in the presence of oxygen. The thermal and thermo-oxidative behaviour of discotic triphenylene derivatives was investigated by us using various methods, in particular by chemiluminescence (CL), UV-vis absorption spectroscopy and in situ thermogravimetry-mass spectroscopy (TG-MS). Various degradation processes are described for increasing temperature, and their influences on functional properties are discussed. KW - Liquid crystal KW - Oxidation KW - Thermogravimetry PY - 1999 DO - https://doi.org/10.1002/(SICI)1099-0712(199903/04)9:2<55::AID-AMO366>3.3.CO;2-R SN - 1057-9257 SN - 1099-0712 VL - 9 IS - 2 SP - 55 EP - 64 PB - Wiley CY - Chichester AN - OPUS4-732 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Wachtendorf, Volker A1 - Hennecke, Manfred A1 - Grell, M. A1 - Bradley, D.D.C. T1 - Polarized fluorescence and orientational order parameters of a liquid-crystalline conjugated polymer N2 - We report a study of the orientational order of aligned thin films of the liquid crystalline conjugated polymer poly(9,9-dioctylfluorene). Steady state polarized fluorescence measurements were used to determine the orientational order parameter and . The influence of intermolecular and intramolecular excitation energy transfer on the degree of polarization is discussed. The role of film morphology is also examined by comparison of the results for glassy and crystalline films. KW - Liquid-cristalline conjugated Polymer KW - Polarized fluorescence measurements PY - 1999 SN - 1098-0121 SN - 0163-1829 SN - 0556-2805 SN - 1095-3795 SN - 1550-235X VL - 60 IS - 1 SP - 277 EP - 283 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-735 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Hennecke, Manfred T1 - Thermo-oxidative stability of a conjugated polymer by chemiluminescence N2 - Conjugated polymers based on 1,4-phenylenevinylene units are very promising materials for applications as light-emitting diodes. A major requirement is their stability at elevated temperatures of operation. The thermo-oxidative behaviour of a soluble poly(1,4-phenylenevinylene) derivative, poly[2,5-bis(2-ethylhexyloxy)-1,4-phenylene vinylene], was investigated by using chemiluminescence and UV–Vis absorption spectroscopy. Extremely sensitive chemiluminescence is successfully applied since even minor chemical changes could lead to a considerable loss of photo- and electro-optical properties. Various degradation processes are described as a function of time and temperature and their influences on functional properties are discussed. The investigated material does not show sufficient thermo-oxidative stability within the temperature range of intended use in contact with air. For industrial application, direct contact with oxygen during processing and operation has to be avoided. KW - Chemiluminescence KW - Conjugated polymer KW - Thermal-oxidation KW - Stability PY - 2000 DO - https://doi.org/10.1016/S0141-3910(99)00120-2 SN - 0141-3910 SN - 1873-2321 VL - 67 IS - 2 SP - 249 EP - 253 PB - Applied Science Publ. CY - London AN - OPUS4-853 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Hennecke, Manfred T1 - Past, present, and future of polymer science at BAM N2 - More than 40 federal research institutes help the German Federal Government to fulfi ll its duties. These institutes are usually designated as “Goverment Research Agencies” (in German: Ressort forschungseinrichtungen, RFE) since they are run by a department or ministry of the Federal Government. A general goal of the BAM, the Federal Institute for Materials Research and Testing, which belongs to the Ministry of Economics and Technology is to improve safety in technology and chemistry. As is the case in nearly every RFE, the tasks of BAM fall into the three areas: research, testing, and consulting. Research may provide a basis for further work or be employed to improve testing services, consulting, regulation, and standardization — in which case it is goal driven; or it may serve long-term interests in regard to acquiring better protection or knowledge. PY - 2012 DO - https://doi.org/10.1002/macp.201200555 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2327 EP - 2328 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27282 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -