Starlike micelles with starlike interactions: A quantitative evaluation of structure factors and phase diagram

被引：66

作者：

Laurati, M

Stellbrink, J

Lund, R

Willner, L

Richter, D

Zaccarelli, E

机构：

[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

[2] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] Univ Roma La Sapienza, INFM, CRS SOFT, I-00185 Rome, Italy

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.94.195504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Starlike PEP-PEO block copolymer micelles offer the possibility to investigate the phase behavior and interactions of regular star polymers (ultrasoft colloids). Micellar functionality f can be smoothly varied by changing solvent composition (interfacial tension). Structure factors obtained by small-angle neutron-scattering can be quantitatively described in terms of an effective potential for star polymers. The experimental phase diagram reproduces to a high level of accuracy the predicted liquid-solid transition. Whereas for intermediate f a bcc phase is observed, for high f the formation of a fcc phase is preempted by glass formation.

引用

页数：4

共 22 条

[1] Neutron scattering of hydrophobically modified poly(ethylene oxide) in aqueous solutions [J].