Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Margarita Krutyeva"'
Publikováno v:
Journal of large-scale research facilities JLSRF, Vol 2, p A61 (2016)
The high brilliance laboratory small angle X-ray scattering instrument GALAXI, which is operated by JCNS, Forschungszentrum Jülich, permits the investigation of chemical correlations in bulk materials or of structures deposited on a surface at nanom
Externí odkaz:
https://doaj.org/article/0b146777796e4e46b5f05b4fdf496e00
Autor:
Margarita Krutyeva, Wim Pyckhout-Hintzen, Dieter Richter, Jürgen Allgaier, Claas Hövelmann, Andreas Raba, Mariapaola Staropoli, Andreas Wischnewski, Marie-Sousai Appavou
Publikováno v:
Journal of rheology 61(6), 1185-1196 (2017). doi:10.1122/1.5001059
Journal of Rheology
Journal of Rheology
The structure and the dynamics of supramolecular comblike polymers in the melt state is studied by a combination of linear rheology, dielectric spectroscopy, and small angle neutron scattering. The system consists of blends of 1,2-polybutyleneoxide (
Autor:
Anne Majerus, Michael Monkenbusch, Reiner Zorn, Olaf Holderer, Margarita Krutyeva, Wiebke Lüke, Marie-Sousai Appavou, Oxana Ivanova, Noemi Szekely, Werner Lehnert, Wim Pyckhout-Hintzen
Publikováno v:
Journal of Membrane Science. 533:342-350
In this work, the structural properties of pristine and phosphoric acid doped poly(2,5-benzimidazole) membranes have been investigated by small angle neutron- and X-ray scattering, X-ray diffraction, polarized light microscopy and transmission electr
Autor:
Jürgen Allgaier, Andreas Wischnewski, M. Rizk, Margarita Krutyeva, Wim Pyckhout-Hintzen, Dieter Richter, Aurel Radulescu, Nicole Lühmann
Publikováno v:
Macromolecules. 50:4733-4741
We present a detailed small-angle neutron scattering investigation of mixtures of poly(ethylene oxide) (PEO)/polyhedral oligomeric silsesquioxane (POSS) hybrids, a popular nanofiller, addressing the conformation of the model-grafted nanoparticles as
Autor:
Marie-Sousai Appavou, Hauke Heller, Emmanuel Kentzinger, Christian Schmidtke, Jürgen Allgaier, Margarita Krutyeva, Horst Weller, Christine Weiß, Wim Pyckhout-Hintzen, Artur Feld, Lisa Sarah Fruhner, Agnes Weimer, Rieke Koll
Publikováno v:
ACS Nano. 11:3767-3775
Nanocomposite materials based on highly stable encapsulated superparamagnetic iron oxide nanocrystals (SPIONs) were synthesized and characterized by scattering methods and transmission electron microscopy (TEM). The combination of advanced synthesis
Autor:
Martin Steinhart, Frank Lange, Kay Saalwächter, Cornelius Franz, Brigitte Hartmann-Azanza, Yury Golitsyn, Margarita Krutyeva
Publikováno v:
Macromolecules. 49:244-256
We study changes in the dynamics of polymer chains confined to cylindrical nanochannels within aluminum oxide membranes. Specifically, a proton time-domain NMR technique is used to assess the effect of transient wall contacts on the time-averaged ori
Autor:
Wim Pyckhout-Hintzen, Ana R. Brás, Dieter Richter, Claas Hövelmann, Andreas S. Poulos, Aurel Radulescu, Peter Lindner, Jürgen Allgaier, Andreas Wischnewski, W. Antonius, Margarita Krutyeva
Publikováno v:
Macromolecules. 48:8933-8946
In this work we present a combined analysis of small-angle neutron scattering, linear rheology and pulsed field gradient nuclear magnetic resonance spectroscopy experiments on the supramolecular association and chain structure of well-defined teleche
Autor:
Martin Steinhart, Michael Ohl, Stefano Pasini, Carmen Mijangos, Margarita Krutyeva, Olaf Holderer, Oxana Ivanova, Peter Falus, Brigitte Hartmann-Azanza, Dieter Richter, Jon Maiz, Aurel Radulescu, Jürgen Allgaier, N Jalarvo, Michael Monkenbusch, Tobias Unruh
Publikováno v:
The journal of chemical physics 146(20), 209901 (2017). doi:10.1063/1.4979809
Autor:
Ana R. Brás, Wim Pyckhout-Hintzen, Jürgen Allgaier, Bela Farago, Andreas Wischnewski, Sebastian Gooßen, Margarita Krutyeva, Aurel Radulescu, Dieter Richter
Publikováno v:
'Soft Matter ', vol: 10, pages: 3649-3655 (2014)
Soft matter 10(20), 3649-3655 (2014). doi:10.1039/c3sm52717d
Soft matter 10(20), 3649-3655 (2014). doi:10.1039/c3sm52717d
We present a neutron scattering analysis of the structure and dynamics of PEO polymer rings with a molecular weight 2.5 times higher than the entanglement mass. The melt structure was found to be more compact than a Gaussian model would suggest. With
Autor:
Aurel Radulescu, Danila Gaudino, Joerg Stellbrink, Rossana Pasquino, Nino Grizzuti, Noemi Szekely, Margarita Krutyeva, Wim Pyckhout-Hintzen
Publikováno v:
Physical chemistry chemical physics : PCCP. 19(1)
The micellar system based on cetylpyridinium chloride (CPyCl) and sodium salicylate (NaSal) in brine solution is investigated on both macro- and micro-length scales through rheology and scattering measurements. The linear viscoelasticity of the syste