Directly resolved core-corona structure of block copolymer micelles by cryo-transmission electron microscopy

被引：109

作者：

Zheng, Y

Won, YY

Bates, FS

Davis, HT

Scriven, LE

Talmon, Y

机构：

[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

[2] Univ Minnesota, Ctr Interfacial Engn, Minneapolis, MN 55455 USA

[3] Technion Israel Inst Technol, Dept Chem Engn, IL-32000 Haifa, Israel

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1999年 / 103卷 / 47期

关键词：

D O I：

10.1021/jp9923264

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Core-corona structures of poly(ethyleneoxide)/polybutadiene (PEO/PB) block copolymer micelles are directly resolved for the first time by examining rapidly vitrified samples by transmission electron microscopy at liquid nitrogen temperature (Cryo-TEM). Spherical micelles form at higher PEO/PB block volume ratio; cylindrical form at lower block volume ratio. Images of both shapes of micelles show a dense core and a diffuse corona. The core and corona sizes agree well with theoretical prediction from the "star" model of polymer micelles.

引用

页码：10331 / 10334

页数：4

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