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相关论文: Force-induced desorption of 3-star polymers in two…

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We consider a simple cubic lattice self-avoiding walk model of 3-star polymers adsorbed at a surface and then desorbed by pulling with an externally applied force. We determine rigorously the free energy of the model in terms of properties…

统计力学 · 物理学 2018-05-09 EJ Janse van Rensburg , S G Whittington

We analyze the phase diagrams of self-avoiding walk models of uniform branched polymers adsorbed at a surface and subject to an externally applied vertical pulling force which, at critical values, desorbs the polymer. In particular, models…

统计力学 · 物理学 2019-03-27 EJ Janse van Rensburg , SG Whittington

We consider a self-avoiding walk model of polymer adsorption where the adsorbed polymer can be desorbed by the application of a force, concentrating on the case of the square lattice. Using series analysis methods we investigate the…

统计力学 · 物理学 2015-06-17 Anthony J. Guttmann , Iwan Jensen , Stu G. Whittington

Using extensive Monte Carlo simulations, we investigate the surface adsorption of self-avoiding trails on the triangular lattice with two- and three-body on-site monomer-monomer interactions. In the parameter space of two-body, three-body,…

We investigate self-avoiding walk models of linear block copolymers adsorbed at a surface and desorbed by the action of a force. We rigorously establish the dependence of the free energy on the adsorption and force parameters, and the form…

统计力学 · 物理学 2020-12-30 EJ Janse van Rensburg , CE Soteros , SG Whittington

We study uniform 3-star polymers with one branch tethered to an attractive surface and another branch pulled by a force away from the surface. Each branch of the 3-star lattice is modelled as a self-avoiding walk on the simple cubic lattice…

统计力学 · 物理学 2019-05-30 C J Bradly , A L Owczarek

We consider self-avoiding walks terminally attached to a surface at which they can adsorb. A force is applied, normal to the surface, to desorb the walk and we investigate how the behaviour depends on the vertex of the walk at which the…

统计力学 · 物理学 2019-08-01 C J Bradly , EJ Janse van Rensburg , A L Owczarek , S G Whittington

We consider a self-avoiding walk model of polymer adsorption where the adsorbed polymer can be desorbed by the application of a force. In this paper the force is applied normal to the surface at the last vertex of the walk. We prove that…

数学物理 · 物理学 2015-06-16 E. J. Janse van Rensburg , S. G. Whittington

A phase diagram for a surface interacting long flexible partially directed polymer chain in a two-dimensional poor solvent where the possibility of collapse in the bulk exists is determined using exact enumeration method. We used a model of…

统计力学 · 物理学 2020-12-29 Pramod K Mishra , Yashwant Singh

We investigate polymers pulled away from an interacting surface, where the force is applied to the untethered endpoint and at an angle $\theta$ to the surface. We use the canonical self-avoiding walk model of polymers and obtain the phase…

软凝聚态物质 · 物理学 2026-03-03 C J Bradly , N R Beaton , A L Owczarek

We deduce the qualitative phase diagram of a long flexible neutral polymer chain immersed in a poor solvent near an attracting surface using phenomenological arguments. The actual positions of the phase boundaries are estimated numerically…

统计力学 · 物理学 2009-11-07 R. Rajesh , Deepak Dhar , Debaprasad Giri , Sanjay Kumar , Yashwant Singh

We consider the phase transition induced by compressing a self-avoiding walk in a slab where the walk is attached to both walls of the slab in two and three dimensions, and the resulting phase once the polymer is compressed. The process of…

统计力学 · 物理学 2025-11-19 C J Bradly , N R Beaton , A L Owczarek

We consider the phase diagram of self-avoiding walks (SAW) on the simple cubic lattice subject to surface and bulk interactions, modeling an adsorbing surface and variable solvent quality for a polymer in dilute solution, respectively. We…

统计力学 · 物理学 2019-06-19 C J Bradly , A L Owczarek , T Prellberg

We consider self-avoiding lattice polygons, in the hypercubic lattice, as a model of a ring polymer adsorbed at a surface and either being desorbed by the action of a force, or pushed towards the surface. We show that, when there is no…

统计力学 · 物理学 2018-02-14 AJ Guttmann , EJ Janse van Rensburg , I Jensen , SG Whittington

We present an analysis of a partially directed walk model of a polymer which at one end is tethered to a sticky surface and at the other end is subjected to a pulling force at fixed angle away from the point of tethering. Using the kernel…

软凝聚态物质 · 物理学 2015-05-19 Judy-anne Osborn , Thomas Prellberg

A phase diagram for a surface-interacting long flexible polymer chain in a two-dimensional poor solvent where the possibility of collapse exists is determined using exact enumeration method. A model of a self-attracting self avoiding walk…

统计力学 · 物理学 2007-05-23 Yashwant Singh , Debaprasad Giri , Sanjay Kumar

Lattice model of directed self avoiding walk has been solved analytically to investigate adsorption desorption phase transition behaviour of a semiflexible sequential copolymer chain on a two dimensional impenetrable surface perpendicular…

统计力学 · 物理学 2010-02-23 Pramod Kumar Mishra

Polymer chains undergoing a continuous adsorption-desorption transition are studied through extensive computer simulations. A three-dimensional self-avoiding walk lattice model of a polymer chain grafted onto a surface has been treated for…

统计力学 · 物理学 2018-05-30 P. H. L. Martins , J. A. Plascak , M. Bachmann

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

We show the existence of a force induced triple point in an interacting polymer problem that allows two zero-force thermal phase transitions. The phase diagrams for three different models of mutually attracting but self avoiding polymers…

统计力学 · 物理学 2009-11-10 Sanjay Kumar , Debaprasad Giri , Somendra M. Bhattacharjee
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