Composition fluctuations in homopolymer blends and diblock copolymers

被引：2

作者：

Frielinghaus, H ^{[1
]}

Mortensen, K ^{[1
]}

Almdal, K ^{[1
]}

机构：

[1] Riso Natl Lab, Condensed Matter Phys & Chem Dept, DK-4000 Roskilde, Denmark

来源：

PHYSICA B | 2000年 / 276卷

关键词：

critical phenomena; phase transitions; polymers; small angle neutron scattering;

D O I：

10.1016/S0921-4526(99)01577-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The thermal composition fluctuations of a deuterogenous polystyrene/polyethyleneoxide (dPS/PEO) homopolymer blend and corresponding diblock copolymer have been investigated by small angle neutron scattering (SANS). The measured susceptibilities could be described by theories, which take strong fluctuations into account. The yielded Ginzburg number is a measure of the deviation from mean field behaviour, and thus can be used to determine the mean field Flory-Huggins interaction parameter from phase boundary measurements. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：375 / 376

页数：2

共 6 条

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