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We study the phase behavior of a symmetric binary polymer blend which is confined into a thin film. The film surfaces interact with the monomers via short range potentials. We calculate the phase behavior within the self-consistent field…

统计力学 · 物理学 2009-10-31 M. Mueller , E. V. Albano , K. Binder

We study long polymer chains in a poor solvent, confined to the space between two parallel hard walls. The walls are energetically neutral and pose only a geometric constraint which changes the properties of the coil-globule (or…

软凝聚态物质 · 物理学 2009-11-10 Hsiao-Ping Hsu , Peter Grassberger

We study the interaction problem of a linear polymer chain, floating in fractal containers that belong to the three-dimensional Sierpinski gasket (3D SG) family of fractals, with a surface-adsorbed linear polymer chain. Each member of the…

统计力学 · 物理学 2009-11-11 Ivan Zivic

The dynamical response of a tethered semiflexible polymer with self-attractive interactions and subjected to an external force field is numerically investigated by varying stiffness and self-interaction strength. The chain is confined in…

软凝聚态物质 · 物理学 2022-11-09 A. Lamura

Conjugated polymers are soft, one-dimensional conductors that admit complex interactions between their polymeric, conformational degrees of freedom and their electronic ones. The presence of extended electronic states along their backbone…

软凝聚态物质 · 物理学 2011-07-29 Jeremy D. Schmit , Alex J. Levine

Molecular dynamics simulations are used to investigate the conformations of a single polymer chain, represented by the Kremer-Grest bead-spring model, in a solution with a Lennard-Jones liquid as the solvent when the interaction strength…

软凝聚态物质 · 物理学 2021-11-17 Yisheng Huang , Shengfeng Cheng

Extensive coarse grained molecular dynamics simulations are performed to investigate the conformational phase diagram of a neutral polymer in the presence of attractive crowders. We show that, for low crowded densities, the polymer…

软凝聚态物质 · 物理学 2023-03-29 Hitesh Garg , R Rajesh , Satyavani Vemparala

We investigate the phase diagram of a two-component associating fluid mixture in the presence of selectively adsorbing substrates. The mixture is characterized by a bulk phase diagram which displays peculiar features such as closed loops of…

统计力学 · 物理学 2009-11-07 J. M. Romero-Enrique , L. F. Rull , U. Marini Bettolo Marconi

Topological phases of matter are defined by their nontrivial patterns of ground-state quantum entanglement, which is irremovable so long as the excitation gap and the protecting symmetries, if any, are maintained. Recent studies on…

强关联电子 · 物理学 2019-03-25 Dominic V. Else , Hoi Chun Po , Haruki Watanabe

The simulation of the transition sequence of superheated Type I superconducting granules (SSG) in disordered suspensions when an external magnetic field is slowly increased from zero has been studied. Simulation takes into account…

经典物理 · 物理学 2009-11-07 A. Penaranda , C. E. Auguet , L. Ramirez-Piscina

We study analytically a model of a two dimensional, partially directed, flexible or semiflexible polymer, attached to an attractive wall which is perpendicular to the preferred direction. In addition, the polymer is stretched by an…

统计力学 · 物理学 2015-05-13 Pui-Man Lam , Yi Zhen , Haijun Zhou , Jie Zhou

Taking into account the well known correspondence between the field theoretical O(n)-vector model in the limit $n\to 0$ and the behavior of long-flexible polymer chains in a good solvent the investigation of ideal polymer chains adsorption…

软凝聚态物质 · 物理学 2012-09-25 Zoryana Usatenko

In this paper we investigate the problem of a long self-avoiding polymer chain immersed in a random medium. We find that in the limit of a very long chain and when the self-avoiding interaction is weak, the conformation of the chain…

无序系统与神经网络 · 物理学 2009-11-07 Yadin Y. Goldschmidt , Yohannes Shiferaw

We calculate statistical properties of amorphous polymer chains between crystalline lamellae by self-consistent field model simulations. In our model, an amorphous subchain is modelled as a polymer chain of which ends are grafted onto the…

软凝聚态物质 · 物理学 2015-06-23 Takashi Uneyama , Takafumi Miyata , Koh-hei Nitta

We investigate the phase diagram of a self-avoiding walk model of a 3-star polymer in two dimensions, adsorbing at a surface and being desorbed by the action of a force. We show rigorously that there are four phases: a free phase, a…

统计力学 · 物理学 2019-05-14 C J Bradly , E J Janse van Rensburg , A L Owczarek , S G Whittington

We investigate morphologies of semiflexible polymer rings, such as circular DNA, which are adsorbed onto topographically or chemically structured substrate surfaces. We classify all equilibrium morphologies for two striped surface…

软凝聚态物质 · 物理学 2014-05-27 Petra Gutjahr , Reinhard Lipowsky , Jan Kierfeld

We consider a lattice model of a semiflexible homopolymer chain in a bad solvent. Beside the temperature $T$, this model is described by (i) a curvature energy $\varepsilon_h$, representing the stiffness of the chain (ii) a…

凝聚态物理 · 物理学 2009-10-28 S. Doniach , T. Garel , H. Orland

We consider the properties of a self-avoiding polymer chain, adsorbed on a solid attractive substrate which is attached with one end to a pulling force. The conformational properties of such chain and its phase behavior are treated within a…

软凝聚态物质 · 物理学 2009-04-01 S. Bhattacharya , V. G. Rostiashvili , A. Milchev , T. A. Vilgis

A ring polymer in a confining space may exhibit at least two phases, namely an expanded (or solvent-rich phase) if its concentration is small, or a collapsed (or polymer-rich phase) when it is concentrated and compressed. These phases are…

软凝聚态物质 · 物理学 2026-03-24 EJ Janse van Rensburg , E Orlandini , MC Tesi

The dynamics of flexible polymer molecules are often assumed to be governed by hydrodynamics of the solvent. However there is considerable evidence that internal dissipation of a polymer contributes as well. Here we investigate the dynamics…

软凝聚态物质 · 物理学 2013-05-29 J. M. Deutsch