You are here: Home Publications
Document Actions

Publications

bibliothek-720x.jpgwx121.jpg

Select the year of publication...

2016-2018 2019-2021 2022-2024 2025
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


Selective Dissolution as a Tool for Detecting Spatial Variations in the Degree of Metastability within Lamellar Polymer Crystals

Binghua Wang, Hailong Zou, Xuchen Wang, Changyu Shen, Jingbo Chen, Günter Reiter, Bin Zhang. Nature Communications 16 (2025) 3275

The dissolution of polymer crystals often proceeds at rates varying in time and space. Here, using low molecular weight poly(ethylene oxide) as a model polymer, we exploit step-wise selective dissolution for unveiling how spatial variations in metastability are generated during the growth of lamellar polymer single crystals. The dissolution velocity along defined crystal faces is constant, but ca. 5 times faster for rough than for smooth faces. From the temperature dependence of dissolution, we derive detachment energies of 420 ± 40 kJ/mol and 650 ± 50 kJ/mol for rough and smooth faces, respectively, suggesting that on a rough face polymer chains have ca. 1/3 less neighboring molecules to interact with. The observed high values of the activation energy indicate that, for dissolving a polymer crystal, the progressive detachment of whole chains is indispensable. Our study reveals a strong relation between growth kinetics and the resulting metastability of polymer crystals. (more...)


London dispersion forces and steric effects within nanocomposites tune interaction energies and chain conformation

Baode Zhang, Snežana D. Zarić, Sonja S. Zrilić, Iosif Gofman, Barbara Heck, Günter Reiter. Communications Chemistry 8 (2025) 21

baode.jpgThe interplay between attractive London dispersion forces and steric effects due to repulsive forces resulting from the Pauli principle often determines the geometry and stability of nanostructures. Aromatic polyimides (PI) and carbon nanotubes (CNT) were chosen as building blocks as two components in the hetero delocalized electron nanostructures. Two PIs, having the same diamine part and different linkage substituents between two phenyl rings of dianhydride part, one linked with ether bond (C-O-C) (OPI), the other with C-(CF3)2 (FPI), were investigated. Surprisingly, two CNT/PI nanocomposites show distinct failure mode from CNT yielding to CNT pull-out failure. Calculation of the interaction energy and chain conformations of each PI upon CNT was performed by accurate density functional theory (DFT) calculations and molecular dynamic simulation (MDS). (more...)


Effect of chemical structure on the crystallization kinetics of triple polymorphic high-sulfur-content polythioethers

Valentina Pirela, Leire Unanue, Justine Elgoyhen, Javier Ramos, Juan Francisco Vega, Agurtzane Mugica, Manuela Zubitur, Cuong Minh Quoc Le, Abraham Chemtob, Radmila Tomovska, Günter Reiter, Jaime Martín, Alejandro J. Müller. European Polymer Journal (2025) 113721

This work studies how the chemical structure of relatively similar high-sulfur alternating polythioether homopolymers (DMDS-alt-DVE, DMDS-alt-TEGDVE, and DMDS-alt-BDDVE) affects their structural properties, morphology, polymorphism, and crystallization kinetics. Differential scanning calorimetry (DSC) and polarized light optical microscopy (PLOM) experiments revealed a complex crystallization for the samples in which up to three different polymorphic phases were identified: a very low melting crystal form (VL-Tm form), a low melting crystal form (L-Tm form) and a high melting crystal form (H-Tm form), characterized by their corresponding melting temperature ranges and confirmed via Wide-Angle X-ray Scattering (WAXS). A coexistence of negative and positive spherulites was found, and their origin was revealed by atomic force microscopy (AFM), which showed how the lamellar arrangement varied in the samples from predominantly radial to a cross-hatched morphology. (more...)

 

List of Publications

Microstructured Surfaces Cause Severe but Non-Detrimental Deformation of the Cell Nucleus
Patricia M. Davidson, Hayriye Ozcelik, Vasif Hasirci, Guenter Reiter, Karine Anselme. Advanced Materials 21, 3586 (2009)
On the mechanics of rim instabilities in viscoelastic polymer thin films
S. Gabriele, S. Coppee, G. Reiter, P. Damman. Eur. Phys. J.-Special Topics 166, 55-61 (2009)
Crystallization in diblock copolymer thin films at different degrees of supercooling
C. Darko, I. Botiz, G. Reiter, D.W. Breiby, J.W. Andreasen, S. V. Roth, D.-M. Smilgies, E. Metwalli, C.M. Papadakis. Phys. Rev. E 79, 041802 (2009)
Branched substituents generate improved supramolecular ordering in physisorbed molecular assemblies
F. Vonau, M. Linares, B. Isare, D. Aubel, M. Habar, L. Bouteiller, G. Reiter, V. Geskin, F. Zerbetto, R. Lazzaroni, L. Simon. J. Phys. Chem. C 113, 4955-4959 (2009)
Polymer crystallization under nano-confinement of droplets studied by molecular simulations
Wenbing Hu, Tao Cai, Yu Ma, Jamie K. Hobbs, O. Farrance, Günter Reiter. Faraday Discussions 143, 129-141 (2009)
Cloning Polymer Single Crystals through Self-seeding
Jianjun Xu, Yu Ma, Wenbing Hu, Matthias Rehahn, and Günter Reiter. Nature Materials 8, 348-353 (2009)
Structuring the Surface of Crystallizable Polymers with an AFM Tip
Cvetlin Vasilev, Günter Reiter, Khalil Jradi, Sophie Bistac, Marjorie Schmitt. In: "Scanning Probe Microscopy in Nanoscience and Nanotechnology" Part 3, Ed. Bharat Bhushan, "NanoScience and Technology" Series, Springer 2010, ISBN 978-3-642-03534-0
Visualizing properties of polymers at interfaces: Relations between molecular features and macroscopic behaviour
Günter Reiter. In “Soft Matter: Scattering, Imaging and Manipulation”, Volume IV: Imaging and Manipulation Techniques Eds.: R. Pecora, R. Borsali, Springer 2008, ISBN 978-1402044649
Some general remarks on crystallization in the presence of additives
Günter Reiter and Jean-Georges Barth. Elemente der Naturwissenschaft 92, 39-61 (2010)
Network swelling competing with translational entropy in autophobic polymer dewetting
W. Beziel, G. Reiter, E. Drockenmuller, R.-V. Ostaci, S. Al Akhrass, F. Cousin, M. Sferrazza. Europhysics Letters 90, 26008 (2010)
Processes of Ordered Structure Formation in Polypeptide Thin Film Solutions
Ioan Botiz, Helmut Schlaad, Günter Reiter. Adv. in Polymer Science, 242 (2011) 117-149
Multi-curvature liquid meniscus in a nanochannel: Evidence of interplay between intermolecular and surface forces
Pilnam Kim, Ho-Young Kim, Jae Kwan Kim, Günter Reiter, Kahp Y. Suh. Lab Chip 9, 3255-3260 (2009)
Self-assembled patterns from evaporating layered fluids
L. V. Govor, J. Parisi, G. H. Bauer, G. Reiter. Journal of Physics - Condensed Matter 21, 264015 (2009)
Dewetting as an investigative tool for studying properties of thin polymer films
Günter Reiter, Samer Al Akhrass, Moustafa Hamieh, Pascal Damman, Sylvain Gabriele, Thomas Vilmin, Elie Raphaël. Eur. Phys. J. - Special Topics 166, 165-172 (2009)
Characterizing and modeling the non-linear viscoelastic tensile deformation of a glass fiber reinforced polypropylene
J. Fritsch, S. Hiermaier, G. Strobl. Composites Science and Technology 69, 2460-2466 (2009)
Colloqium: Laws controlling crystallization and melting in bulk polymers
G. Strobl. Rev. Mod. Phys. 81, 1287-1300 (2009)
Deformation of cholesteric elastomers by uniaxial stress along the helix axis
Werner Stille. Eur. Phys. J. E 28, 57-71 (2009)
高分子物理学: 理解其结构和性质的基本概念
作者:(德国)G.斯特罗伯 译者:胡文兵 蒋世春 门永峰 北京:科学出版社 2009, ISBN 978-7-03-022441-5
Metastable Untwisted States in Cholesteric Elastomers
Werner Stille. Macromolecules 42, 7979-7981 (2009)
Gradient Interfaces in SBS and SBS/PS Blends and Their Influence on Morphology Development and Material Properties
Yi Thomann, Ralf Thomann, Alfred Hasenhindl, Rolf Mülhaupt, Barbara Heck, Konrad Knoll, Helmut Steininger, Kay Saalwächter. Macromolecules 42, 5684-5699 (2009)
Personal tools