Entropic and conformational study of isolated double-tethered chains by three-dimensional lattice simulations

被引：2

作者：

Shida, Kazuhito ^{[1
]}

Kasuya, Atsuo

Kawazoe, Yoshiyuki

机构：

[1] Tohoku Univ, Ctr Interdisciplinary Res, Sendai, Miyagi 980, Japan

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 980, Japan

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2007年 / 382卷 / 02期

关键词：

lattice polymers; surface attached; improved sampling; SELF-AVOIDING WALKS; MONTE-CARLO; IMPENETRABLE INTERFACE; SURFACE; COPOLYMERS; ADSORPTION; POLYMERS; MOLECULES; DYNAMICS;

D O I：

10.1016/j.physa.2007.04.024

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Double-tethered polymers are a kind of linear polymer with a peculiar topological constraint; that is, both of its endpoints are attached to a plane which the polymer segments cannot penetrate. The effects of the constraint on the polymer's configurational and entropic properties were investigated by means of a three-dimensional lattice simulation that combined a previously proposed idea with a very efficient chain generation algorithm. In particular, the value of a topology-dependent critical exponent was estimated for the double-tethered configurations. This data is the first report on isolated and double-tethered chains. Also, two optional types of tethered-polymer were investigated as asymptotes of the double- and single-tethered configurations. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：405 / 414

页数：10

共 15 条

[1] MODELS FOR THE SURFACE-ADSORPTION OF TRIBLOCK COPOLYMERS [J].