TY - CONF A1 - Friedrich, Jörg Florian A1 - Mix, Renate A1 - Kühn, Gerhard T1 - Contribution of chemical interactions to the adhesion between aluminium and functional groups of different (mono-) type and density at polymer surfaces T2 - 7th European Adhesion Conference (EURADH 2004) CY - Freiburg im Breisgau, Germany DA - 2004-09-07 PY - 2004 VL - 1 SP - 138 EP - 143 PB - DECHEMA CY - Frankfurt am Main AN - OPUS4-4680 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian T1 - Ein neues Polymerisationsverfahren T2 - Berliner Polymertage 2000 (Humboldt Universität zu Berlin) CY - Berlin, Germany DA - 2000-10-11 PY - 2000 AN - OPUS4-6119 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Swaraj, Sufal A1 - Oran, Umut A1 - Lippitz, Andreas A1 - Schulze, Rolf-Dieter A1 - Friedrich, Jörg Florian A1 - Unger, Wolfgang T1 - Surface Analysis of Plasma-Deposited Polymer Films, 2: Analysis of Post-Plasma Air Reacted Plasma Polymerized Styrene by X-Ray Photoelectron Spectroscopy and X-Ray Absorption Spectroscopy N2 - Chemical properties of plasma-polymerized styrene films can be effectively controlled by the appropriate choice of external plasma parameters, such as duty cycle, power and monomer pressure. Chemical properties here are the regularity of the primary structure, the amount of long living radicals and branching or cross-linking or both in plasma polymerized styrene films, which can be indirectly monitored by X-ray photoelectron spectroscopy (XPS) and near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Principally, XPS and NEXAFS spectra of plasma-polymerized styrene show all the spectroscopic fingerprints characteristic of atactic polystyrene indicating an inherent similarity of the respective primary chemical structures. There is an increase in irregularity and radical concentration for the plasma deposited films with increasing duty cycle or power. With an increase in monomer pressure, a decreased level of monomer fragmentation and, consequently, an increase in regularity must be concluded from the experimental data. The applied power regulates the fragmentation of the monomers as monitored by spectroscopic signals correlated to the aromatic rings. A trend in the extent of the post-plasma oxygen incorporation according to the variation of the various external plasma parameters was deduced, which agrees with earlier ToF-SIMS findings KW - Chemical characterization KW - ESCA/XPS KW - NEXAFS KW - Plasma polymerization KW - Polystyrene PY - 2004 DO - https://doi.org/10.1002/ppap.200400022 SN - 1612-8850 SN - 1612-8869 VL - 1 SP - 134 EP - 140 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-6935 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Oran, Umut A1 - Swaraj, Sufal A1 - Friedrich, Jörg Florian A1 - Unger, Wolfgang T1 - Surface Analysis of Plasma-Deposited Polymer Films, 3: In situ Characterization of Plasma-Deposited Ethylene Films by ToF-SSIMS N2 - Pulsed-plasma-deposited ethylene films were studied by time-of-flight static secondary ion mass spectrometry (ToF-SSIMS) before and after exposure to ambient air. The influence of the external plasma parameters on the secondary ion mass spectra of plasma-deposited ethylene films was investigated. From these data, information on the chemical character of the plasma-deposited ethylene films was derived. The investigation of the effect of external plasma parameters on the chemical character of the plasma-deposited ethylene films revealed that there were some drastic changes in the secondary ion mass spectra of the films. It was found that fragmentation and re-arrangement of the monomer molecules in the plasma, which affects the chemical character of the deposited films, vary according to the external plasma parameters. When the plasma polymers are exposed to air, extensive oxygen incorporation occurs. The oxygen uptake is high at the beginning and then it levels of. Some indications for the formation and decay of peroxy radicals (COO) and, subsequently, hydroperoxides (COOH) are found. It was observed that the oxygen uptake of the plasma deposited ethylene films increase when the plasma conditions become harder. KW - Ageing KW - Plasma polymerization KW - Polyethylene (PE) KW - ToF-SIMS PY - 2004 DO - https://doi.org/10.1002/ppap.200400025 SN - 1612-8850 SN - 1612-8869 VL - 1 SP - 141 EP - 152 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-6936 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Retzko, Iris A1 - Friedrich, Jörg Florian A1 - Lippitz, Andreas A1 - Unger, Wolfgang T1 - Chemical analysis of plasma-polymerized films: The application of X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (NEXAFS) and fourier transform infrared spectroscopy (FTIR) N2 - Selected FTIR, XPS and NEXAFS spectroscopy results obtained with films deposited with different plasma polymerization processes and different monomers (styrene, acetylene, ethylene and butadiene) are presented. In detail FTIR spectra, XPS surveys, XPS valence bands and core level signals including shake-up features as well as carbon K-edge absorption spectra are qualitatively and, in some cases, semi-quantitatively considered. Information on the film formation, the chemistry of the films and the film stability against air exposure are derived from spectroscopic features. With styrene chemically rather well defined plasma polymer layers can be formed with rather high deposition rates applying a pulse plasma process. Using ethylene, acetylene or butadiene as a monomer in the plasma deposition process the deposition rates are smaller. Using these monomers plasma polymer films can be obtained with a primary chemical structure which is similar to each other but more or less different from those of the respective conventional polymers. The main difference between these samples is their individual concentration of unsaturated carbon species. Finally, a technologically relevant example, i.e. a plasma deposited polymer barrier layer deposited on the inner wall of a poly(ethylene) vessel is briefly considered. KW - Plasma polymer KW - Styrene KW - Ethylene KW - Acethylene KW - Butadiene KW - XPS KW - NEXAFS KW - FTIR KW - Chemical characterization KW - Deposition process KW - Stability PY - 2001 DO - https://doi.org/10.1016/S0368-2048(01)00330-9 SN - 0368-2048 SN - 1873-2526 VL - 121 IS - 2 SP - 111 EP - 129 PB - Elsevier CY - Amsterdam AN - OPUS4-6938 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mach, Reinhard A1 - Letzig, U. A1 - Goering, Harald A1 - Oleszak, Franz A1 - Friedrich, Jörg Florian A1 - Richter, K. T1 - Effects of Heat Treatment on the Structure of Thermal Plasma Synthesized SiCN Composite Nanopowders N2 - SiCN composite nanopowders with different chemical composition and characteristics were synthesized by the RF induction plasma at atmospheric pressure. Frequently the as-produced powders exhibit a high degree of chemical disorder or structural defects. Because the composition and the microstructure of starting powders have a great influence on the properties of composite ceramics, the changes of chemical composition, crystallization, and morphology of the as-produced powders during heat treatment up to 1500 °C were investigated in detail. PY - 2003 UR - http://www.ipme.ru/e-journals/RAMS/no_1503/tai/tai.html SN - 1606-5131 VL - 5 IS - 1 SP - 85 EP - 90 PB - Advanced Study Center CY - St. Petersburg AN - OPUS4-6968 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Friedrich, Jörg Florian A1 - Kühn, Gerhard A1 - Unger, Wolfgang A1 - Mix, Renate ED - Radusch, H.-J. ED - Fiedler, L. T1 - Plasma-initiated homo and copolymerisation for modifying polymer surfaces with funtional groups of different type and density T2 - Internationale Fachtagung Polymerwerkstoffe ; P-2002 CY - Halle (Saale), Germany DA - 2002-09-25 PY - 2002 SN - 3-86010-656-2 SP - 534 EP - 539 PB - Martin-Luther-Univ. Halle-Wittenberg CY - Halle (Saale) AN - OPUS4-6969 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian A1 - Mix, Renate A1 - Kühn, Gerhard A1 - Unger, Wolfgang T1 - Functional groups bearing plasma homo and copolymer layers as adhesion promoters in metal-polymer composites T2 - 10. Neues Dresdner Vakuumtechnisches Kolloquium (NDVaK) CY - Dresden, Germany DA - 2002-10-17 PY - 2002 SP - 6 EP - 15 PB - DTVa CY - Dresden AN - OPUS4-6970 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kühn, Gerhard A1 - Retzko, Iris A1 - Lippitz, Andreas A1 - Unger, Wolfgang A1 - Friedrich, Jörg Florian T1 - Homofunctionalized polymer surfaces formed by selective plasma processes N2 - Several possibilities exist to produce a modified polymer surface with a high density of only one sort of functional group such as: (i) the plasma grafting of unfragmented monomer molecules and their polymerization forms OH, NH2, COOH groups, etc. in concentrations of approximately 25 groups per 100 C atoms; (ii) selective plasma bromination provides 10–25 CBr groups; (iii) the plasma oxidation of polymer surfaces in an O2 plasma followed by the chemical reduction of all O-containing groups to OH groups by diborane, vitride™ (Na complex) or LiAlH4 yields 9–14 OH groups per 100 carbon atoms; and (iv) the grafting of spacers with different endgroups onto OH or CBr groups produces 7–10 spacer molecules/100 C. This work was focused on the formation of thin plasma deposited polymer layers with a maximum of (homo)functional groups and with a minimum of chemical irregularities using the pulsed plasma technique. The monomers were allylalcohol, allylamine, acrylonitrile and acrylic acid. The further intent was to study the interactions of functional groups (OH, COOH, NH2) and deposited metals (Cr, Al, Ti). It was expected that more basic (NH2), weakly basic or neutral (OH) or more acidic (COOH) groups would show different interactions and chemical reactions with metal atoms. KW - Pulsed plasma polymerization KW - Functional groups KW - Long-term stability KW - Polymer-metal composites PY - 2001 DO - https://doi.org/10.1016/S0257-8972(01)01056-8 SN - 0257-8972 VL - 142-144 SP - 494 EP - 500 PB - Elsevier Science CY - Lausanne AN - OPUS4-6971 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Retzko, Iris A1 - Kühn, Gerhard A1 - Unger, Wolfgang A1 - Lippitz, Andreas T1 - Plasma polymers with chemically defined structures in contact with metals N2 - The retention of chemical structure and functional groups during plasma polymerization was investigated. Usually plasma polymer layers, prepared by a continuous wave radio-frequency plasma, are often chemically irregular in their structure and composition. To minimize these irregularities low wattages and the pulsed plasma technique were applied to avoid fragmentations. The first goal was to produce plasma polymers comprising double or triple bonds as precursors for electrically conducting polymers. Acetylene, ethylene, butadiene and polystyrene were used as monomers and deposited as thin polymer films by pulsed plasmas of low wattages. Styrene polymerization was strongly enhanced in the dark phase (plasma off) of a pulsed r.f. plasma caused by the reactivity of the vinyl-type double bond. This could be confirmed by a verification of a rather high chemical regularity of the film sample. The oxygen content of this film measured by X-ray photoelectron spectrometry (XPS) was in situ 0% and after 24 h exposure to air lower than 1%. Additionally, post-plasma oxidations of trapped radicals with air could be suppressed using NO gas as radical quencher. Such quenched plasma polymer layers were completely stable against oxidation for a number of weeks. During the low-wattage pulse plasma polymerization metal atoms were simultaneously or layer by layer evaporated into the growing layer and in situ measured by XPS. These metal atoms are acting as dopants. Here, Li, K, Mg and Cr were used at different concentrations providing electrical conductivity and magnetic properties for the film. KW - Pulsed plasma KW - Plasma polymerization KW - Doping with metal atoms KW - Encapsulation of nanoparticles PY - 2001 DO - https://doi.org/10.1016/S0257-8972(01)01051-9 SN - 0257-8972 VL - 142-144 SP - 460 EP - 467 PB - Elsevier Science CY - Lausanne AN - OPUS4-6972 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Möller, B. A1 - Kühn, Gerhard A1 - Unger, Wolfgang A1 - Krüger, P. T1 - Improvement of adhesion properties of polymers by producing oxyfluorinated surfaces PY - 2001 SN - 0016-4232 VL - 92 IS - 5 SP - 1334 EP - 1444 PB - Leuze CY - Saulgau, Württ. AN - OPUS4-6973 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Retzko, Iris A1 - Friedrich, Jörg Florian A1 - Kühn, Gerhard A1 - Lippitz, Andreas A1 - Unger, Wolfgang T1 - Eine neue Generation von alterungsbeständigen Plasmapolymeren mit definierter chemischer Struktur T2 - 8. Neues Dresdner Vakuumtechnisches Kolloquium (NDVaK) CY - Dresden, Deutschland DA - 2000-10-19 PY - 2000 VL - 8 SP - 110 EP - 114 CY - Dresden AN - OPUS4-6974 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, P. A1 - Knes, R. A1 - Friedrich, Jörg Florian T1 - Surface cleaning by plasma-enhanced desorption of contaminants PY - 1999 SN - 0257-8972 VL - 112 SP - 240 EP - 244 PB - Elsevier Science CY - Lausanne AN - OPUS4-6984 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Koprinarov, Ivaylo A1 - Friedrich, Jörg Florian A1 - Wöll, Ch. T1 - K-Edge Soft X-ray Absorption (NEXAFS) Spectroscopy In Surface Chemical Analysis of Polymers T2 - International Discussion Meeting Advanced Methods of Polymer Characterization: New Developments and Applications in Industry CY - Mainz, Germany DA - 1999-03-15 PY - 1999 SP - P3.53 CY - Mainz AN - OPUS4-6925 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Grytsenko, K. A1 - Grynko, D. A1 - Lozovski, V. A1 - Friedrich, Jörg Florian A1 - Schulze, Rolf-Dieter A1 - Jurga, J. A1 - Convertino, A. A1 - Kotko, A. ED - Jurga, J. T1 - Properties of Au nano-clusters in PTFE film prepared by co-evaporation in a vacuum PY - 2004 SN - 83-7143-232-1 SP - 79 EP - 84 PB - Wydawn. Politechniki Pozna´nskiej CY - Poznan AN - OPUS4-6961 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, P. A1 - Friedrich, Jörg Florian A1 - Meyer-Plath, Asmus T1 - Gezielte chemische Funktionalisierung von porösen Materialien und Bauteilen aus der Mikrosystemtechnik T2 - Workshop Funktionalisierung von Oberflächen für die Biotechnologie CY - Dresden, Deutschland DA - 2003-03-11 PY - 2003 SP - 1(?) EP - 8(?) PB - EFDS CY - Dresden AN - OPUS4-6962 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, P. A1 - Friedrich, Jörg Florian A1 - Meyer-Plath, Asmus T1 - Selective chemical modification of porous materials and films for bio-medical applications T2 - CIP 2003 ; 14th International Colloquium on Plasma Processes CY - Antibes, France DA - 2003-06-30 PY - 2003 SP - 1(?) EP - 4(?) PB - sfv, Sociéte Française du Vide CY - Paris AN - OPUS4-6963 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Geng, Sh. A1 - Friedrich, Jörg Florian A1 - Gähde, J. A1 - Guo, L. T1 - Surface-Enhanced Infrared Absorption (SEIRA) and Its Use in analysis of Plasma-Modified Surface KW - Plasma KW - IR KW - Surface-enhanced infrared absorption (SEIRA) KW - Surface modification PY - 1999 SN - 0021-8995 SN - 1097-4628 VL - 71 SP - 1231 EP - 1237 PB - Wiley InterScience CY - Hoboken, NJ AN - OPUS4-6985 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Friedrich, Jörg Florian A1 - Koprinarov, Ivaylo A1 - Weiss, K. A1 - Wöll, Ch. ED - Mittal, K. T1 - The Application of Near Edge X-ray Absorption Fine Structures (NEXAFS) Spectroscopy and X-ray Photoelectron Spectroscopy (XPS) in Surface Analysis of Chromium-evaporated Polymers and Organic Films PY - 1998 SN - 90-6764-290-8 SP - 147 EP - 168 PB - VSP CY - Utrecht AN - OPUS4-6986 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Koprinarov, Ivaylo A1 - Lippitz, Andreas A1 - Friedrich, Jörg Florian A1 - Unger, Wolfgang A1 - Wöll, Ch. T1 - Oxygen plama induced degradation of the surface of poly(styrene), poly(bisphenol-A-carbonate) and poly(ethylene terephthalate) as observed by soft X-ray absorption spectroscopy (NEXAFS) KW - Oxygen DC plasma treatment KW - Plasma degradation KW - X-ray absorption spectroscopy (NEXAFS) PY - 1998 SN - 0032-3861 SN - 1873-2291 VL - 39 IS - 14 SP - 3001 EP - 3009 PB - Springer CY - Berlin AN - OPUS4-6990 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian A1 - Koprinarov, Ivaylo A1 - Giebler, Rainer A1 - Lippitz, Andreas A1 - Unger, Wolfgang T1 - Reactions and Intermediates at the Metal-Polymer Interface - Detected by XPS and NEXAFS Spectroscopy T2 - 4th European Conference on Adhesion (EURADH '98) ; 1st World Congress on Adhesion and Related Phenomena (WCARP) CY - Garmisch-Partenkirchen, Germany DA - 1998-09-06 PY - 1998 SN - 0021-8464 VL - 75 IS - 1 SP - 1.60 EP - 1.62 PB - Gordon & Breach CY - New York, NY AN - OPUS4-6991 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Krüger, P. A1 - Friedrich, Jörg Florian ED - Mennig, G. T1 - Modifizierung von Polymeren im Niederdruckplasma T2 - 15. Fachtagung über Verarbeitung und Anwendung von Polymeren CY - Chemnitz, Deutschland DA - 1997-11-13 PY - 1997 SN - 3-00-001942-1 IS - B27 SP - 1 EP - 8 PB - Techn. Univ. CY - Chemnitz AN - OPUS4-6992 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, P. A1 - Wigant, L. A1 - Friedrich, Jörg Florian ED - Nowack, H. T1 - Permeabilitätsverminderung von Polyolefinfilmen durch Plasmapolymerbeschichtungen T2 - 5. Internationale Fachtagung - ND-Plasma-Technologie CY - Duisburg, Deutschland DA - 1997-09-22 PY - 1997 VL - 5 SP - 1(?) EP - 16(?) PB - Print-Service CY - Mülheim AN - OPUS4-6996 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Koprinarov, Ivaylo A1 - Lippitz, Andreas A1 - Friedrich, Jörg Florian A1 - Unger, Wolfgang A1 - Wöll, Ch. T1 - Surface analysis of DC oxygen plasma treated or chromium evaporated poly(ethylene terephthalate) foils by soft X-ray absorption spectroscopy (NEXAFS) KW - Biaxially streched poly(ehtylene terephthalate) KW - Oxygen DC plasma treatment KW - Metallization with chromium PY - 1997 SN - 0032-3861 SN - 1873-2291 VL - 38 IS - 8 SP - 2005 EP - 2010 PB - Springer CY - Berlin AN - OPUS4-6998 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Wigant, L. A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Wittrich, H. T1 - Corona, spark and combined UV and ozone modification of polymer films WeBP23 N2 - Different types of plasma, irradiative and chemical activation were compared in terms of surface functionalization. Corona and spark jet plasmas are characterized by low gas temperatures and high rates in surface modification. UV irradiation in the presence of ozone does not involve any particle bombardment and acts only by enhanced photooxidative processes. Although ion implantation can be avoided, this method is not free of radiative damage in both the surface-near region and the bulk of polymers. Furthermore, its functionalization rate is low. In relation to low-pressure O2 plasma modification, all treatments mentioned here have a low efficiency in adhesion promotion due to oxidative degradation of macromolecules and formation of molecular debris known as the ''weak boundary layer''. PY - 1998 DO - https://doi.org/10.1016/S0257-8972(97)00318-6 SN - 0257-8972 VL - 98 IS - 1 SP - 879 EP - 885 PB - Elsevier Science CY - Lausanne AN - OPUS4-7000 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian ED - Scheyrer, P. T1 - Vergleich der Wirksamkeit verschiedener Normal- und Niederdruckplasmen bei der Vorbehandlung von Kunststoffen T2 - Seminar Beschriften und vollflächiges Dekorieren von Kunststoffoberflächen CY - Würzburg, Deutschland DA - 1999-03-30 PY - 1995 SP - 14 Seiten PB - Süddeutsches Kunststoffzentrum CY - Würzburg AN - OPUS4-7002 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian T1 - Plasmabehandlung von Polymeren PY - 1997 SN - 0001-8198 SN - 0943-1454 VL - 41 IS - 1-2 SP - 28 EP - 33 PB - Vieweg CY - Wiesbaden AN - OPUS4-7003 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Friedrich, Jörg Florian A1 - Kühn, Gerhard A1 - Mix, Renate ED - D'Agostino, R. T1 - Polymer Surface Modification with Monofunctional Groups of Different Type and Density T2 - 16th International Symposium on Plasma Chemistry ; ISPC-16 CY - Taormina, Italy DA - 2003-06-22 PY - 2005 SN - 3-527-40487-2 SP - 3 EP - 21 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-7019 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Wigant, L. A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Erdmann, J. A1 - Gorsler, H.-V. T1 - Oberflächenvorbehandlung von Polypropylen in elektrischen Entladungen PY - 1995 SN - 0590-8450 VL - 1 SP - 123 EP - 127 PB - Verl. Coating Thomas CY - St. Gallen AN - OPUS4-7005 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Friedrich, Jörg Florian A1 - Wigant, L. A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Wittrich, H. A1 - Prescher, D. ED - Mittal, K. L. T1 - Barrier properties of plasma-modified polypropylene and polyethyleneterephthalate T2 - International Symposium on Polymer Surface Modification: Relevance to Adhesion CY - Las Vegas, NV, USA DA - 1993-11-03 KW - Plasma fluorination of polymers KW - Deposition of fluorine-containing plasma polymers KW - Barrier formation against solvent permeation KW - Permeation mechanism of solvent mixtures PY - 1996 SN - 90-6764-201-0 VL - 1 SP - 121 EP - 136 PB - VSP CY - Utrecht AN - OPUS4-7006 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Friedrich, Jörg Florian A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Gross, Thomas A1 - Rohrer, P. A1 - Saur, W. A1 - Erdmann, J. A1 - Gorsler, H.-V. ED - Mittal, K. L. T1 - The improvement in adhesion of polyurethane-polypropylene composites by short-time exposure of polypropylene to low and atmospheric pressure plasmas KW - Polyurethane-polypropylene adhesion KW - Low pressure plasma pretreatment KW - Atmospheric pressure plasma treatment KW - Short-time exposure KW - Relevance of functional groups to adhesion KW - Molecular orientation at polymer surfaces PY - 1996 SN - 90-6764-201-0 SP - 49 EP - 72 PB - VSP CY - Utrecht AN - OPUS4-7007 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wigant, L. A1 - Friedrich, Jörg Florian T1 - Untersuchungen zur Kraftstoffdichtheit von Kunststofftanks PY - 1996 SN - 0949-8214 VL - 1 SP - 40 EP - 47 PB - Technische Fachhochschule CY - Wildau AN - OPUS4-7008 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Friedrich, Jörg Florian T1 - Plasmabehandelte Polymere charakterisieren PY - 1995 SN - 0025-5300 VL - 37 IS - 6 SP - 233 EP - 237 PB - Carl Hanser Verlag CY - München AN - OPUS4-7009 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Gross, Thomas A1 - Rohrer, P. A1 - Saur, W. A1 - Erdmann, J. A1 - Gorsler, H.-V. T1 - The improvement in adhesion of polyurethane-polypropylene composites by short-time exposure of polypropylene to low and atmospheric pressure plasmas KW - Polyurethane-polypropylene adhesion KW - Low pressure plasma pretreatment KW - Atmospheric pressure plasma treatment KW - Short-time exposure KW - Relevance of functional groups to adhesion KW - Molecular orientation at polymer surfaces PY - 1995 SN - 0169-4243 SN - 1568-5616 VL - 9 IS - 5 SP - 575 EP - 598 PB - VNU Science Press CY - Utrecht AN - OPUS4-7010 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Wigant, L. A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Geng, Sh. A1 - Erdmann, J. A1 - Gorsler, H.-V. T1 - Neue Erkenntnisse zur Plasmamodifizierung von Polymeroberflächen PY - 1995 SN - 0949-8214 VL - 1 SP - 36 EP - 42 PB - Technische Fachhochschule CY - Wildau AN - OPUS4-7011 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Unger, Wolfgang A1 - Lippitz, Andreas T1 - Plasma Modification of Polymer Surfaces PY - 1995 SN - 1022-1360 SN - 0258-0322 SN - 1521-3900 VL - 100 SP - 111 EP - 115 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-7012 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Wigant, L. A1 - Unger, Wolfgang A1 - Lippitz, Andreas A1 - Wittrich, H. A1 - Prescher, D. A1 - Erdmann, J. A1 - Gorsler, H.-V. A1 - Nick, L. T1 - Barrier properties of plasma-modified polypropylene and polyethyleneterephthalate KW - Plasma fluorination of polymers KW - Deposition of fluorine-containing plasma polymers KW - Barrier formation against solvent permeation KW - Permeation mechanism of solvent mixtures PY - 1995 SN - 0169-4243 SN - 1568-5616 VL - 9 IS - 9 SP - 1165 EP - 1180 PB - VNU Science Press CY - Utrecht AN - OPUS4-7013 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian A1 - Kühn, Gerhard A1 - Mix, Renate T1 - Tailoring of Polymer Surfaces with Different Monotype Functional Groups of Variable Density Using Chemical and Plasma Chemical Processes T2 - 10th Dresden Polymer Discussion: Characterization of Polymer Surfaces and Thin Films CY - Meißen, Germany DA - 2005-04-10 KW - Plasma modification KW - Introduction of functional groups KW - Reactions at polymer surfaces PY - 2005 SP - 34 EP - 49 PB - Leibniz-Institut für Polymerforschung Dresden CY - Meißen AN - OPUS4-7332 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Schulz, Ulrich A1 - Kühn, Gerhard A1 - Erdmann, Jessica A1 - Möller, B. T1 - Glanzerhaltung von Autolacken - Verbessern der Lebensdauer eines 2K-Klarlacks durch Gasphasen-Fluorierung PY - 1999 SN - 0025-5300 VL - 41 SP - 375 EP - 378 PB - Carl Hanser Verlag CY - München AN - OPUS4-7284 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Kühn, Gerhard T1 - Kontrolle der Plasmamodifizierung von Polymeroberflächen mittels ESCA PY - 1998 VL - 70 SP - 5 CY - Darmstadt AN - OPUS4-7285 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian T1 - Tailoring of Polymer Surfaces with Different Monotype Functional Groups of Variable Density Using Chemical and Plasma Chemical Processes T2 - 10. Dresdner Polymertage CY - Meissen, Germany DA - 2005-04-11 PY - 2005 AN - OPUS4-7298 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian T1 - Contribution of Plasma-introduced Functional Groups at Polymer Surfaces to the Adhesion of Metals T2 - 12. Bundesdeutsche Fachtagung Plasmatechnologie CY - Braunschweig, Germany DA - 2005-03-21 PY - 2005 AN - OPUS4-7325 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian T1 - Chemical Synthesis at plasma modified polymer surfaces T2 - ISPC 17 CY - Toronto, Canada DA - 2005-08-07 PY - 2005 AN - OPUS4-7344 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian T1 - Introduction of irregularieties into plasma polymers by radiative and autooxidative processes T2 - ISPC 17 CY - Toronto, Canada DA - 2005-08-07 PY - 2005 AN - OPUS4-7345 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Koprinarov, Ivaylo A1 - Friedrich, Jörg Florian A1 - Lippitz, Andreas A1 - Unger, Wolfgang ED - Olefjord, I. ED - Nyborg, L. ED - Briggs, D. T1 - X-ray Absorption Spectroscopy (NEXAFS) of PET Surfaces T2 - 7th European Conference on Applications of Surface and Interface Analysis CY - Göteborg, Sweden DA - 1997-06-16 PY - 1997 SN - 0-471-97827-2 SP - 755 EP - 759 PB - Wiley CY - Chichester AN - OPUS4-7288 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, P. A1 - Friedrich, Jörg Florian T1 - Gezielte chemische Funktionalisierung von Polymermaterialien T2 - 4. Wörlitzer Workshop "Funktionelle Schichten" CY - Wörlitz, Deutschland DA - 2003-05-27 PY - 2003 VL - 4 SP - 1(?) EP - 7(?) PB - EFDS CY - Dresden AN - OPUS4-7289 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Mix, Renate A1 - Kühn, Gerhard T1 - Adhesion of metals to plasma-induced functional groups at polymer surfaces N2 - The peel strength of aluminium to polypropylene and poly(tetrafluoroethylene) was determined in dependence on the type and the concentration of functional groups on the polymer surface. For this purpose the polymer surface was equipped with monotype functional groups. The first method to produce monotype functionalized surfaces was an introduction of O functional groups using an oxygen plasma treatment and converting these groups to OH groups applying a wet chemical reduction. In result of this two-step treatment the hydroxyl group concentration at the polymer surface could be increased from 3–4 to 10–14 OH groups/100 C atoms. The second method consists in the deposition of a 150 nm adhesion-promoting layer of plasmapolymers or copolymers onto the polymer surface using the pulsed plasma technique. For that purpose functional groups carrying monomers as allyl alcohol, allylamine and acrylic acid were used. Applying the plasma-initiated copolymerization and using neutral “monomers” like ethylene or butadiene the concentration of the functional groups was varied. A correlation of peel strength with the ability of forming chemical interactions between Al atoms and functional groups was found: COOH > OH >> NH2 > H(CH2–CH2). KW - Peel strength KW - Aluminium KW - Polypropylene KW - Poly(tetrafluoroethylene) KW - Pulsed plasma KW - Allyl alcohol KW - Allylamine KW - Acrylic acid KW - Plasma surface treatment KW - Adhesion PY - 2005 SN - 0257-8972 VL - 200 IS - 1-4 SP - 565 EP - 568 PB - Elsevier Science CY - Lausanne AN - OPUS4-10897 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Friedrich, Jörg Florian A1 - Mix, Renate A1 - Kühn, Gerhard ED - Possart, W. T1 - Contribution of chemical interactions to the adhesion between evaporated metals and functional groups of different types at polymer surfaces PY - 2005 SN - 3-527-31263-3 SP - 265 PB - Wiley-VCH CY - Weinheim AN - OPUS4-10898 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Friedrich, Jörg Florian T1 - Kunststoffkorrosion durch Polymerabbau - Früherkennung und zeitraffende Prognose T2 - 1. Thüringer Grenz- und Oberflächentage CY - Jena, Deutschland DA - 2005-09-15 PY - 2005 SP - 33 EP - 50 PB - Innovent CY - Jena AN - OPUS4-10899 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Mix, Renate A1 - Kühn, Gerhard A1 - Friedrich, Jörg Florian ED - d'Agostino, R. T1 - The Potential of Surface Radicals for Polymer Functionalization T2 - 16th International Symposium on Plasma Chemistry (ISPC-16) CY - Taormina, Italy DA - 2003-06-22 PY - 2003 IS - CD-ROM PB - Dep. of Chemistry, Univ. CY - Bari AN - OPUS4-2612 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mierczynska, A. A1 - Friedrich, Jörg Florian A1 - Maneck, Heinz-Eberhard A1 - Boiteux, G. A1 - Jeszka, J.K. T1 - Segregated network polymer/carbon nanotubes composites N2 - In this work we present the preparation of conductive polyethylene/carbon nanotube composites based on the segregated network concept. Attention has been focused on the effect of decreasing the amount of filler necessary to achieve low resistivity. Using high- and low-grade single-walled carbon nanotube materials we obtained conductive composites with a low percolation threshold of 0.5 wt.% for high-grade nanotubes, about 1 wt% for commercial nanotubes and 1.5 wt% for low-grade material. The higher percolation threshold for low-grade material is related to low effectiveness of other carbon fractions in the network formation. The electrical conductivity was measured as a function of the single-walled carbon nanotubes content in the polymer matrix and as a function of temperature. It was also found that processing parameters significantly influenced the electrical conductivity of the composites. Raman spectroscopy was applied to study single wall nanotubes in the conductive composites. KW - Polymer KW - Single-walled carbon nanotubes KW - Composite KW - Segregated network KW - Sintering KW - Conductivity KW - Raman spectroscopy PY - 2004 DO - https://doi.org/10.2478/BF02475579 SN - 1644-3624 SN - 1895-1066 VL - 2 IS - 2 SP - 363 EP - 370 PB - Central European Science Journals CY - Warsaw AN - OPUS4-3583 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -