Micelle formation in mixtures of styrene-isoprene diblock copolymer and poly(vinyl methyl ether)

被引：12

作者：

Ahn, JH

Sohn, BH

Zin, WC ^{[1
]}

Noh, ST

机构：

[1] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, Polymer Res Inst, Pohang 790784, South Korea

[3] Hanyang Univ, Dept Chem Engn, Ansan 425791, South Korea

来源：

MACROMOLECULES | 2001年 / 34卷 / 13期

关键词：

D O I：

10.1021/ma001642+

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The characteristics of micelle formed in blends of styrene-isoprene diblock copolymer (SI) and poly(vinyl methyl ether) (PVME) were investigated by using small angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and light scattering techniques. The results of SAXS and TEM experiments indicate that the blends form spherical micelles with isoprene-rich cores and styrene-corona mixed with PVME in a matrix of PVME. As temperature increased, the blends underwent macrophase separation into a PVME-rich phase and a SI-rich phase which was also microphase-separated to ordered microdomains. Upon further heating, the ordered structure of the SI-rich region transforms to a disordered phase in a manner resembling the order-disorder transition in pure block copolymer melts.

引用

页码：4459 / 4465

页数：7

共 29 条

[1]

Ahn JH, 1997, EUR POLYM J, V33, P1113

[2] Structure of shear-induced perforated layer phase in styrene-isoprene diblock copolymer melts [J].