SELF-DIFFUSION IN POLYMER-SOLUTIONS - TEST FOR SCALING AND REPTATION

被引：129

作者：

HERVET, H

LEGER, L

RONDELEZ, F

机构：

[1] Laboratoire de Physique de la Matière Condensée, Collège de France

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.42.1681

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present preliminary results on the self-diffusion coefficient Dself of polystyrene chains (molecular weight Mn=245 000 and 123 000) in benzene, obtained by forced Rayleigh scattering. In the semidilute regime where the chains overlap, Dself decreases with the polymer concentration c as c-1.7±0.1. This behavior is compatible with scaling-law predictions and is the first experimental evidence for the existence of reptation in this regime. © 1979 The American Physical Society.

引用

页码：1681 / 1684

页数：4

共 18 条

[1]

ADAM M, 1976, J PHYS-PARIS, V37, P1045, DOI 10.1051/jphys:019760037090104500

[2] DYNAMICAL PROPERTIES OF POLYMER-SOLUTIONS IN GOOD SOLVENT BY RAYLEIGH-SCATTERING EXPERIMENTS [J].