CONFINEMENT FREE-ENERGY OF SEMIFLEXIBLE POLYMERS

被引：57

作者：

DIJKSTRA, M ^{[1
]}

FRENKEL, D ^{[1
]}

LEKKERKERKER, HNW ^{[1
]}

机构：

[1] VANT HOFF LAB,3508 TB UTRECHT,NETHERLANDS

来源：

PHYSICA A | 1993年 / 193卷 / 3-4期

关键词：

D O I：

10.1016/0378-4371(93)90482-J

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a novel scheme to compute the chemical potential of semiflexible polymers, we have measured the confinement free energy of a wormlike chain in a tube. We compare our result for the dependence of the free energy on the chain length, the persistence length and the diameter of the cylinder with the corresponding theoretical predictions based on the scaling theory of Odijk and the fluctuation theory of Helfrich. Our simulation data agree well with the exponents of the theoretically predicted power laws. We find evidence that, for long wavelengths, the mode damping assumption underlying Helfrich's theory is valid.

引用

页码：374 / 393

页数：20

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