MOBILITY OF POLYMERS IN FILMS THINNER THAN THEIR UNPERTURBED SIZE

被引：208

作者：

REITER, G ^{[1
]}

机构：

[1] MAX PLANCK INST POLYMER RES,W-6500 MAINZ,GERMANY

来源：

EUROPHYSICS LETTERS | 1993年 / 23卷 / 08期

关键词：

D O I：

10.1209/0295-5075/23/8/007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Dewetting of polystyrene films thinner than the end-to-end distance of the molecules on glass substrates as a function of film thickness (h) and temperatures was investigated. The density of the films was lower than in the bulk and decreased with decreasing h. This caused an increase of the mobility of the molecules with decreasing h. It is suggested that these effects result from an enlargement of the number of inaccessible sites caused by segregation of the molecules as h decreases.

引用

页码：579 / 584

页数：6

共 9 条

[1]

[Anonymous], 1971, MODERN THEORY POLYM

[2]

DEGENNES PG, COMMUNICATION

[3] SELF-DIFFUSION OF A MOLECULE IN POROUS VYCOR GLASS [J].