Structural Observation and Kinetic Pathway in the Formation of Polymeric Micelles

被引：73

作者：

Lund, Reidar ^{[1
]}

Willner, Lutz ^{[2
]}

Monkenbusch, Michael ^{[2
]}

Panine, Pierre ^{[3
]}

Narayanan, Theyencheri ^{[3
]}

Colmenero, Juan ^{[4
]}

Richter, Dieter ^{[2
]}

机构：

[1] DIPC, San Sebastian 20018, Spain

[2] Forschungszentrum Julich, Inst Solid State Res, D-52425 Julich, Germany

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[4] DIPC, CSIC UPV EHU, Ctr Mixto, Ctr Fis Mat, San Sebastian 20018, Spain

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 18期

关键词：

BLOCK-COPOLYMER MICELLES; MICELLIZATION KINETICS; DIBLOCK COPOLYMER; EXCHANGE KINETICS; LIGHT-SCATTERING; MODEL; ASSOCIATION; RELAXATION; WATER; SANS;

D O I：

10.1103/PhysRevLett.102.188301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The route by which amphiphilic molecules self-assemble into micelles is still not fully understood. In this Letter, we present direct structural information on the birth and growth of block copolymer micelles by means of synchrotron x-ray scattering with millisecond time resolution. Using a quantitative model, we show that the self-assembly process can be viewed as a nucleation and growth type process where the elemental growth mechanism is an exchange of single molecules.

引用

页数：4

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