You are here: Home Publications
Document Actions



Select the year of publication...

2016-2018 2019-2021 2022-2023 2024
2004-2006  2007-2009 2010-2012  2013-2015
before 1990 1991-1995  1996-2000 2001-2003


 ...or go to the

advanced search form.


Recent Publications

Mechanism for the Formation of Millimeter-Long Solid Filaments by Spin Coating Dilute Solutions of a Crystallizable Polymer

Da Huang, Thorsten Hugel, and Günter Reiter. Macromolecules, published online

huang.jpgWe have investigated the formation of millimeter-long filaments induced by spin-coating ca. 130 °C dilute para-xylene solutions of rapidly crystallizable polyethylene chains with a contour length in the micrometer range onto ca. 80 °C mica substrates. These filaments were radially oriented and accumulated on the periphery of the substrate. Our observations can be explained by the stretching of polymers through the flow field induced by spinning the solution on a solid substrate. The corresponding loss in conformational entropy emphasized attractive interactions between polymers, which resulted in the formation of bundles and their assembly into long filaments. Caused by a Plateau–Rayleigh-type instability of a liquid coating on a solid filament and due to crystallization, these filaments were decorated with various small-scale structures. (more...)

Competing influences of cooling rate and diluent concentration on crystallization of poly(3-hexylthiophene)

Mina Alizadehaghdam, Farhang Abbasi, Günter Reiter. J. Phys. Chem. C 128 (2024) 4757–4765

mina.jpgCrystallization of poly(3-hexylthiophene) (P3HT) was studied in mixtures of different concentrations of 3-hexylthiophene (3HT) as a diluent. Two coexisting crystal populations, socalled “thin” and “thick” crystals, with melting temperatures differing by more than 10 °C were observed in these mixtures. Intriguingly, the “thick” crystals represented transient unstable structures, with a mass fraction that was the highest ФH for rapidly crystallized P3HT in presence of significant amount of diluent. Reflecting its dependence on growth kinetics, ФH decreased with increasing crystallization temperature, extended crystallization time or lower cooling rate. The presence of a diluent led to a “depression” of the melting temperature, described by Raoult’s law and the Flory equation, which was similar for P3HT samples crystallized in various ways. (more...)

Tuning the hydraulic resistance by swelling-induced buckling of membranes in high-aspect-ratio microfluidic devices

Claas-Hendrik Stamp, Binyam Solomon, Friederike Lang, Efstathios Mitropoulos and Thomas Pfohl.
Lab Chip 23 (2023) 3662-3670

stamp.jpgControlling fluid flow in microfluidic devices and adapting it to varying conditions by selectively regulating hydrodynamic properties is of critical importance, as the field of microfluidics faces increasingly complex challenges in its wide range of applications. One way to manipulate flows in microfluidic devices is to introduce elastic elements that can be actively or passively deformed. In this work, we developed a membrane-based microfluidic device that allows us to study the deformation of swollen thin membranes as a function of the volume fractions in binary mixtures – here isopropanol and water. (more...)



List of Publications

Charge transport in nanoparticle chains influenced by stabilizer molecules
Leonid V. Govor, Gottfried H. Bauer, Günter Reiter, and Jürgen Parisi. Phys. Status Solidi A, 210, No. 6, 1107–1114 (2013)
Reversibly slowing dewetting of conjugated polymers by light
Ioan Botiz, Paul Freyberg, Natalie Stingelin, Arnold Chang-Mou Yang, Günter Reiter. Macromolecules 46, 2352–2356 (2013)
Directing nuclear deformation on micropillared surfaces by substrate geometry and cytoskeleton organization
F. Badique, D. R. Stamov, P. Davidson, M. Veuillet, G. Reiter, J.N. Freund, C. M. Franz, K. Anselme. Biomaterials 34, 2991-3001 (2013)
Linear and Star-Shaped POSS Hybrid Materials Containing Crystalline Isotactic Polystyrene Chains
Maximilian Vielhauer, Pierre J. Lutz, Günter Reiter und Rolf Mülhaupt. Journal of Polymer Science, Polymer Chemistry 51, 947–953 (2013)
Generating long supramolecular pathways with a continuous density of states by physically linking conjugated molecules via their end groups
R. Shokri, M. A. Lacour, J.-P. Lere-Porte, F. Serein-Spirau, K. Miqueu, J.-M. Sotiropoulos, F. Vonau, D. Aubel, M. Cranney, G. Reiter, and L. Simon, J. Am. Chem. Soc. 135, 5693–5698 (2013)
Toughening Plastics by Crack Growth Inhibition Through Unidirectionally Deformed Soft Inclusions
Sen Zhang, Shu Zhu, Keqing Han, Xiaoling Feng, Yu Ma, Muhuo Yu, Günter Reiter. Polymer 54, 6019–6025 (2013)
Swelling with a Near-Theta Solvent as a Means to Modify the Properties of Polymer Thin Films
Andrew Clough, Mithun Chowdhury, Kaiwan Jahanshahi, Günter Reiter, Ophelia K.C. Tsui. Macromolecules 45, 6196−6200 (2012)
Controllable processes for generating large single crystals of poly(3-hexylthiophene)
Khosrow Rahimi, Ioan Botiz, Natalie Stingelin, Navaphun Kayunkid, Michael Sommer, Felix Peter, Vinzenz Koch, Ha Nguyen, Olivier Coulembier, Philippe Dubois, Martin Brinkmann and Günter Reiter. Angew. Chem. 124, 11293 –11297 (2012)
Effect of Shear Stress on Crystallization of Isotactic Polypropylene from a Structured Melt
Bin Zhang, Jingbo Chen, Jing Cui, Fangfang Ji, Guoqiang Zhen, Hui Zhang, Barbara Heck, Günter Reiter, Changyu Shen. Macromolecules 45, 8933–8937 (2012)
Consequences of varying adsorption strength and adding steric hindrance on self-assembly of supra-molecular polymers on carbon substrates
Roozbeh Shokri, Francois Vonau, Marion Cranney, Dominique Aubel, Ashok Narladkar, Benjamin Isare, Laurent Bouteiller, Laurent Simon, Günter Reiter. J. Phys. Chem. C 116 (40), 21594–21600 (2012)
Segmental Relaxations Have Macroscopic Consequences in Glassy Polymer Films
Mithun Chowdhury, Paul Freyberg, Falko Ziebert, Arnold C.-M. Yang, Ullrich Steiner and Günter Reiter. Phys. Rev. Lett. 109, 136102 (2012)
Shear-stress sensitive lenticular vesicles for targeted drug delivery
Margaret N. Holme, Illya A. Fedotenko, Daniel Abegg, Jasmin Althaus, Lucille Babel, France Favarger, Renate Reiter, Radu Tanasescu, Pierre-Léonard Zaffalon, André Ziegler, Bert Müller, Till Saxer, Andreas Zumbuehl. Nature Nanotechnology 7, 536–543 (2012)
Probing Properties of Polymers in Thin Films via Dewetting.
Günter Reiter. In: "Glass Transition, Dynamics and Heterogeneity of Polymer Thin Films", Ed. Toshiji Kanaya. Springer, ISBN 978-3-642-34338-4, Adv. Polym. Sci. 252, 29 (2013)
Thin Polymer Films Out of Thermodynamic Equilibrium
Mithun Chowdhury. Inaugural-Dissertation zur Erlangung des Doktorgrades der Fakultät für Mathematik und Physik der Albert-Ludwigs-Universität Freiburg, 2012
Investigation of Melting and Re-Crystallisation Behavior of Polyethylene Nanocrystals
Nandita Basu. Inaugural-Dissertation zur Erlangung des Doktorgrades der Fakultät für Mathematik und Physik der Albert-Ludwigs-Universität Freiburg, 2012
Severe deformations of malignant bone and skin cells, as well as aged cells, on micropatterned surfaces
Patricia M. Davidson, Tokuko Haraguchi, Takako Koujin, Thorsten Steinberg, Pascal Tomakidi, Yasushi Hiraoka, Karine Anselme, Günter Reiter. In "Biomaterials Surface Science" Eds. Andreas Taubert, Joao F. Mano, Jose Carlos Rodriguez-Cabello. Wiley-VCH Germany, ISBN 978-3527330317 (2013)
Morphological changes during annealing of polyethylene nanocrystals
Nandita Basu, Anna Osichow, Stefan Mecking, Günter Reiter. EPJE 35,18 (2012)
Anisotropic Charge Transport in Spherulitic Poly(3-hexylthiophene) Films
Edward J. W. Crossland, Kim Tremel, Florian Fischer, Khosrow Rahimi, Günter Reiter, Ullrich Steiner, and Sabine Ludwigs. Adv. Mater. 24, 839–844 (2012)
Molecular dynamics and biaxiality of nematic polymers and elastomers
Felicitas Brömmel, Werner Stille, Heino Finkelmann, Anke Hoffmann. Soft Matter 7, 2387-2401 (2011)
Non-equilibrium behavior of thin polymer films
Katherine R. Thomas, Alexis Chenneviere, Günter Reiter and Ullrich Steiner. Phys. Rev. E 83, 021804 (2011)
Personal tools