Dynamics of block copolymer micelles revealed by x-ray intensity fluctuation spectroscopy

被引：122

作者：

Mochrie, SGJ

Mayes, AM

Sandy, AR

Sutton, M

Brauer, S

Stephenson, GB

Abernathy, DL

Grubel, G

机构：

[1] MCGILL UNIV,DEPT PHYS,MONTREAL,PQ,CANADA

[2] ARGONNE NATL LAB,ADV PHOTON SOURCE,ARGONNE,IL 60439

[3] ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439

[4] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.78.1275

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report x-ray intensity fluctuation spectroscopy measurements of the equilibrium dynamics of polymer micelle liquids, composed of polystyrene-polyisoprene block copolymer micelles within a polystyrene homopolymer matrix. The equilibrium dynamics were investigated for times between one and several hundred seconds, and for wave vectors from 0.003 to 0.015 Angstrom(-1), far beyond wave vectors that can be studied with visible light. A wave-vector-dependent diffusion coefficient is found.

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页码：1275 / 1278

页数：4

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