Publications
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Recent Publications
Da Huang, Thorsten Hugel, and Günter Reiter. Macromolecules, published online
We 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...)
Mina Alizadehaghdam, Farhang Abbasi, Günter Reiter. J. Phys. Chem. C 128 (2024) 4757–4765
Crystallization 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...)
Claas-Hendrik Stamp, Binyam Solomon, Friederike Lang, Efstathios Mitropoulos and Thomas Pfohl.
Lab Chip 23 (2023) 3662-3670
Controlling 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
- 凝縮系物理学: 結晶からソフトマターへ
- G. ストローブル (著), 田口 健 (翻訳), 深尾 浩次 (翻訳). 出版社: シュプリンガー・ジャパン(株) 2006, ISBN 978-4431712206
- Variation of the Network Anisotropy of Cholesteric Side Chain Elastomers
- Christian Bourgerette, Bin Chen, Heino Finkelmann, Michel Mitov, Jürgen Schmidtke, Werner Stille. Macromolecules 39, 8163 (2006)
- Effects of comonomers on lamellar and noncrystalline microstructure of ethylene copolymers
- T.Y. Cho, E.J. Shin, W. Jeong, B. Heck, R. Graf, G. Strobl, H.W. Spiess, D.Y. Yoon. Macromolecular Rapid Communications 27, 322-327 (2006)
- Deriving Molecular Parameters of Interfaces Between Chemically Identical Polymers from Macroscopically Observed Phenomena
- Günter Reiter. Macromol. Symp. 229, 81–92 (2005)
- Structure Formation of Polystyrene-block-poly(gamma-benzyl L-glutamate) in Thin Films
- S. Ludwigs, G. Krausch, G. Reiter, M. Losik, M. Antonietti, H. Schlaad. Macromolecules 38, 7532 (2005)
- Residual stresses in thin polymer films cause rupture and dominate early stages of dewetting
- Günter Reiter, Moustafa Hamieh, Pascal Damman, Séverine Sclavons, Sylvain Gabriele, Thomas Vilmin, Elie Raphaël. Nature Materials 4, 754 (2005)
- Reply: Discussion of problems of non-equilibrium thermodynamics of polymers
- J.-U. Sommer and G. Reiter. Thermochimica Acta, 432, 153 (2005)
- Crystallization in Ultra-Thin Polymer Films/ Morphogenesis and Thermodynamical Aspects
- J.-U. Sommer and G. Reiter. Thermochimica Acta, 432, 135 (2005)
- Evolution of rim instabilities in the dewetting of slipping thin polymer films
- Günter Reiter. J. Adhesion 81, 381 (2005)
- Instability and droplet formation in evaporating thin films of a binary solution
- Leonid V. Govor, Jürgen Parisi, Gottfried H. Bauer and Günter Reiter. Phys. Rev. E 71, 051603 (2005)
- Morphology of an asymmetric ethyleneoxide-butadiene di-block copolymer in bulk and thin films
- D.M. Lambreva, R. Opitz, G. Reiter, P.M. Frederik and W.H. de Jeu. Polymer 46, 4868 (2005)
- Evolution of multilevel order in supramolecular assemblies
- F. Vonau, D. Suhr, D. Aubel, L. Bouteiller, G. Reiter and L. Simon. Phys. Rev. Lett. 94, 066103 (2005)
- Block formation during polymer crystallization
- T. Hippler, S. Jiang, G. Strobl. Macromolecules 38, 9396 (2005)
- Crystallization of a poly(ethylene-co-octene): I - A precursor structure and two competing mechanisms
- Andreas Häfele, Barbara Heck, Takahiko Kawai, Peter Kohn, Gert Strobl. Eur. Phys. J. E 16, 207-216 (2005)
- A thermodynamic multiphase scheme treating polymer crystallization and melting
- G. Strobl. Eur. Phys. J. E 18, 295-309 (2005)
- Crystallization of poly(ethylene-co-octene): II - Melt memory effects on first order kinetics
- Andreas Häfele, Barbara Heck, Thomas Hippler, Takahiko Kawai, Peter Kohn, Gert Strobl. Eur. Phys. J. E 16, 217-224 (2005)
- Dewetting on Model Surfaces: Transition from a Capillary Force Dominated to a Dissipation Dominated Regime
- Günter Reiter, Moustafa Hamieh, Nancy Baudelet, Séverine Sclavons, Pascal Damman. http://www.e-polymers.org (2004)
- Morphogenesis and non-equilibrium pattern formation in two-dimensional polymer crystallization
- Jens-Uwe Sommer and Günter Reiter. Phase Transition 77, 703-745 (2004)
- Nanoparticle ring formation in evaporating micron-size droplets
- Leonid V. Govor, Günter Reiter, Gottfried H. Bauer, Jürgen Parisi. Appl. Phys. Lett. 84, 4774-4776 (2004)
- Self-assembled nanoparticle deposits formed at the contact line of evaporating micrometer-size droplets
- Leonid V. Govor, Günter Reiter, Jürgen Parisi, and Gottfried H. Bauer. Phys. Rev. E 69, 061609 (2004)