Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Wolfgang Dr Schrepp"'
Autor:
Stefan Spange, Susann Anders, Lysann Kaßner, Wolfgang Dr Schrepp, Walter Hoyer, Andreas Pohlers
Publikováno v:
Macromolecular Chemistry and Physics. 211:1550-1558
A procedure for synthesis aromatic-aliphatic PAK, completely functionalized with p-fluorophenyl terminal groups, is presented. This synthesis uses the nucleophilic aromatic substitution of DFB with various secondary aliphatic diamines [CH 3 -NH-(CH 2
Publikováno v:
Macromolecular Chemistry and Physics. 210:1957-1965
A TDI–MDI oligomer obtained by hydrolysis of a crosslinked polyurethane (PU) was analysed regarding the oligomer distribution by standard MALDI-TOF-MS and the monomer sequence in the different oligomers by collision induced dissociation (CID) exper
Autor:
Ulf Baus, Thomas Subkowski, Bernhard von Vacano, Yaqian Liu, Claus Bollschweiler, Wendel Wohlleben, Wolfgang Dr Schrepp
Publikováno v:
European Biophysics Journal. 39:457-468
Hydrophobins are available from natural resources only in milligram amounts. BASF succeeded in a recombinant production process, up-scaled to pilot plant production in kilogram scale. Strain and protein optimization by modulation of gene expression a
Autor:
Wolfgang Dr Schrepp, Nick Fandrich, Frank Rittig, Melanie Urtel, Steffen M. Weidner, Ulrich Just
Publikováno v:
Macromolecular Chemistry and Physics. 207:1026-1037
The structure of polyacetal copolymers with respect to their end groups is investigated. Several techniques, such as liquid chromatography, MALDI-TOF MS, IR and NMR spectroscopy, as well as combined techniques like 2D chromatography have been applied
Autor:
Philippe Desbois, Wolfgang Dr Schrepp, Christian Schade, Stephane Menoret, Volker Warzelhan, Stéphane Carlotti, Michel Fontanille, Alain Deffieux
Publikováno v:
Macromolecular Chemistry and Physics. 202:3219-3227
Publikováno v:
Langmuir. 12:857-860
In this study scanning force microscopy was applied to image single polyethylenimine (PEI) polymers adsorbed onto negatively charged latex spheres. The tip of an atomic force microscope was chemically modified to induce a strong chemical interaction
Autor:
Michael Dr Rapp, D. Binz, Harald Fuchs, Wolfgang Dr Schrepp, B. Fleischmann, M. von Schickfus, I. Kabbe, Siegfried Hunklinger
Publikováno v:
Sensors and Actuators B: Chemical. 4:103-108
A high-frequency SAW gas-sensing device has been developed for an operating frequency of 600 MHz. It contains three separate SAW delay lines, which are the frequency-determining elements of oscillator circuits. They can be coated with thin organic fi
Autor:
Hans-Ulrich Siegmund, Hans Riegler, Ude Scheunemann, Helmuth Möhwald, Ulrike Licht, Michaela Paudler, Johannes Eickmans, P. Tippmann-Krayer, Wolfgang Dr Schrepp
Publikováno v:
Advanced Materials. 3:46-51
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 100:1014-1016
Polymer adsorption effects are of prime importance in technical applications i.e. for flocculation in paper making or the cleaning of waste water. In this paper we report on the direct imaging of single polyethylenimine polymers adsorbed on negativel
Publikováno v:
Advanced Materials. 7:549-551