STICK AND SLIP BEHAVIOR OF CONFINED OLIGOMER MELTS UNDER SHEAR - A MOLECULAR-DYNAMICS STUDY

被引：47

作者：

MANIAS, E ^{[1
]}

HADZIIOANNOU, G ^{[1
]}

BITSANIS, I ^{[1
]}

TENBRINKE, G ^{[1
]}

机构：

[1] UNIV FLORIDA, DEPT CHEM ENGN, GAINESVILLE, FL 32611 USA

来源：

EUROPHYSICS LETTERS | 1993年 / 24卷 / 02期

关键词：

D O I：

10.1209/0295-5075/24/2/004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The flow behaviour of melts of short chains, confined in molecularly thin Couette flow geometries, is studied with molecular-dynamics simulations. The effect of wall attraction and confinement on the density and velocity profiles is analysed. In these highly inhomogeneous films, a strong correlation between the density and velocity profile is found. Sticking of the interfacial layer on the wall and slip on the wall and inside the film is manifested by changes in the velocity profile. The location of the slip is determined by the strength of the wall attraction.

引用

页码：99 / 104

页数：6

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