IMAGE-ANALYSIS OF PHASE-SEPARATION IN POLYMERS BLENDS

被引：14

作者：

KATZEN, D

REICH, S

机构：

[1] Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot

来源：

EUROPHYSICS LETTERS | 1993年 / 21卷 / 01期

关键词：

D O I：

10.1209/0295-5075/21/1/010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this letter we examine experimentally the validity of scaling laws for the dynamics of late stages of phase separation in polystyrene-poly(vinyl methyl ether) thin films. This is done using image analysis, UV transmission microscopy and Nomarsky interferometry. We find that scaling laws do not describe the observed phenomena. Contrary to common belief, the redistribution of the components between the phases persists to the very late stages of the phase separation process. Interfacial surface tension is a dominating force governing the evolution of the observed morphology.

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页码：55 / 60

页数：6

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