Micro- vs. macro-phase separation in binary blends of poly(styrene)-poly(isoprene) and poly(isoprene)-poly(ethylene oxide) diblock copolymers

被引：47

作者：

Frielinghaus, H ^{[1
]}

Hermsdorf, N

Almdal, K

Mortensen, K

Messé, L

Corvazier, L

Fairclough, JPA

Ryan, AJ

Olmsted, PD

Hamley, IW

机构：

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

[2] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England

[3] Univ Leeds, Dept Phys & Astron, Leeds LS2 9JT, W Yorkshire, England

[4] Univ Leeds, Sch Chem, Leeds LS2 9JT, W Yorkshire, England

[5] Univ Leeds, Polymer IRC, Leeds LS2 9JT, W Yorkshire, England

来源：

EUROPHYSICS LETTERS | 2001年 / 53卷 / 05期

关键词：

D O I：

10.1209/epl/i2001-00205-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper we present an experimentally determined phase diagram of binary blends of the diblock copolymers poly(styrene)-poly(isoprene) and poly(isoprene)-poly(ethylene oxide). At high temperatures, the blends form an isotropic mixture. Upon lowering the temperature, the blend macro-phase separates before micro-phase separation occurs. The observed phase diagram is compared to theoretical predictions based on experimental parameters. In the low-temperature phase the crystallisation of the poly(ethylene oxide) block influences the spacing of the ordered phase.

引用

页码：680 / 686

页数：7

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