The European Physical Journal E

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Excluded-volume polymer-induced depletion interaction between parallel flat plates
The European Physical Journal E - Tập 6 - Trang 129-132 - 2001
R. Tuinier, H.N.W. Lekkerkerker
The interaction between two parallel plates due to non-adsorbing polymer chains with excluded volume is calculated using the adsorption method. The adsorption is calculated from the profile of the polymer segment concentration between the plates, which is obtained from the product function of the concentration profile near a single wall, involving the correlation length. The renormalization group ... hiện toàn bộ
Viscoelastic phase separation in polymer blends
The European Physical Journal E - Tập 15 Số 2 - Trang 177-187 - 2004
Kuntian Luo, W. Gronski, Chr. Friedrich
Influence of shear on polypropylene crystallization kinetics
The European Physical Journal E - Tập 15 - Trang 167-175 - 2004
Hong Huo, Yanfeng Meng, Hongfei Li, Shichun Jiang, Lijia An
Isothermal crystallization kinetics under shear in the melt of iPP was investigated by optical microscopy. It appears that shearing from 200 to the crystallization temperatures enhanced the kinetics, but the shear effect was not obvious if the melt of iPP was sheared only at 200. The experiment results show that relaxation plays an important role during crystallization, and that spherulite growth ... hiện toàn bộ
Definition of frame-invariant thermodiffusion and Soret coefficients for ternary mixtures
The European Physical Journal E - Tập 42 - Trang 1-8 - 2019
José M. Ortiz de Zárate
The definitions of thermodiffusion and Soret coefficients for a binary mixture include a concentration prefactor x(1 - x), when mole fraction x is used, or w(1 - w), when mass fraction w is used. In this paper the physical reasons behind this choice are reviewed, emphasizing that the use of these prefactors makes the thermodiffusion and the Soret coefficients invariant upon changing in the concent... hiện toàn bộ
Molecular dynamics of hyperbranched polyesters in the confinement of thin films
The European Physical Journal E - Tập 17 - Trang 199-202 - 2005
A. Serghei, Y. Mikhailova, H. Huth, C. Schick, K. -J. Eichhorn, B. Voit, F. Kremer
Broadband Dielectric Spectroscopy is employed to investigate the molecular dynamics in thin films of hyperbranched polyesters (type AB1B2, with -OH and -OCOCH3 as terminal groups). Three relaxation processes are detected: alpha, beta and gamma. While the latter two are not influenced by the confinement, a pronounced effect is observed on the alpha relaxation: with decreasing film thickness the slo... hiện toàn bộ
Mesoscale structures from magnetocapillary self-assembly
The European Physical Journal E - Tập 36 Số 10 - 2013
Nicolas Vandewalle, Noriko Obara, Geoffroy Lumay
The role of the amorphous phase in the re-crystallization process of cold-crystallized poly(ethylene terephthalate)
The European Physical Journal E - Tập 27 - Trang 365-373 - 2008
M. Pieruccini, A. Flores, U. Nöchel, G. Di Marco, N. Stribeck, F. J. Baltá Calleja
The process of re-crystallization in poly(ethylene terephthalate) is studied by means of X-ray diffraction (SAXS and WAXS) and dynamical mechanical thermal analysis. Samples cold-crystallized for 9h at the temperatures T c = 100 fcir#circ;C and T c = 160 fcir#circ;C, i.e. in the middle of the $ \alpha$ relaxation region and close to its upper bound, respectively, are analyzed. During heating from ... hiện toàn bộ
Correlation effects, image charge effects and finite size in the macro-ion-electrolyte system: A field-theoretic approach
The European Physical Journal E - Tập 28 - Trang 419-440 - 2009
D. J. Lee
We consider a model of a macro-ion surrounded by small ions of an electrolyte solution. The finite size of ionic charge distributions of ions, and image charge effects are considered. From such a model it is possible to construct a statistical field theory with a single fluctuating field and derive physical interpretations for both the mean field and two-point correlation function. For point-like ... hiện toàn bộ
Polymer chemists/polymer physicists: A constructive partnership
The European Physical Journal E - Tập 10 Số 1 - Trang 83-86 - 2003
N. Hadjichristidis
Shaping the gradients driving phoretic micro-swimmers: influence of swimming speed, budget of carbonic acid and environment
The European Physical Journal E - Tập 44 - Trang 1-17 - 2021
Nadir Möller, Benno Liebchen, Thomas Palberg
pH gradient-driven modular micro-swimmers are investigated as a model for a large variety of quasi-two-dimensional chemi-phoretic self-propelled entities. Using three-channel micro-photometry, we obtain a precise large field mapping of pH at a spatial resolution of a few microns and a pH resolution of $$\sim 0.02~\hbox {pH}$$ units for swimmers of different velocities propelling on two differently... hiện toàn bộ
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