Morphological Manipulation of Ionic Block Copolymer Micelles Using an Electric Field

被引：21

作者：

Lee, Sun Ju ^{[1
]}

Park, Moon Jeong ^{[1
,2
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Chem, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Div Adv Mat Sci WCU, Pohang 790784, South Korea

来源：

LANGMUIR | 2010年 / 26卷 / 23期

关键词：

ELECTROLYTE MEMBRANES; CAPILLARY ATTRACTION; TRANSITION; BEHAVIOR; ACID); NANOPARTICLES; COUNTERIONS; ORIENTATION; PARTICLES; ALIGNMENT;

D O I：

10.1021/la103708d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present an electric-field-triggered sphere-to-cylinder transition of negatively charged block copolymer micelles with a radically low electric field of 30 V/cm. The system investigated is dilute solutions of strong polyelectrolyte containing ionic-b-neutral block copolymers (i.e., poly(styrenesulfonate-b-methylbutylene)). We have carried out in situ small-angle X-ray scattering experiments equipped with a dc power supply, combined with electron microscopy and atomic force microscopy. The application of small electrical fields across the solutions of spherical micelles results in the transient morphology of interconnected spheres, which are eventually transformed into a cylindrical shape with time. The E-field-induced cylindrical micelles revert to spherical micelles when the E field is switched off.

引用

页码：17827 / 17830

页数：4

共 54 条

[11] Block copolymer assembly via kinetic control [J].

Cui, Honggang ;

Chen, Zhiyun ;

Zhong, Sheng ;

Wooley, Karen L. ;

Pochan, Darrin J. .

SCIENCE, 2007, 317 (5838) :647-650

[12] Wormlike micelles: where do we stand? Recent developments, linear rheology and scattering techniques [J].

Dreiss, Cecile A. .

SOFT MATTER, 2007, 3 (08) :956-970

[13] Block copolymer solutions under external electric field: Dynamic behavior monitored by light scattering [J].

Giacomelli, Fernando C. ;

Riegel, Izabel C. ;

Petzhold, Cesar L. ;

da Silveira, Nidya P. .

MACROMOLECULES, 2008, 41 (07) :2677-2682

[14] Cubic to Hexagonal Phase Transition Induced by Electric Field [J].

Giacomelli, Fernando C. ;

da Silveira, Nadya P. ;

Nallet, Frederic ;

Cernoch, Petr ;

Steinhart, Milos ;

Stepanek, Petr .

MACROMOLECULES, 2010, 43 (09) :4261-4267

[15] Linear and non-linear triblock terpolymers. Synthesis, self-assembly in selective solvents and in bulk [J].

Hadjichristidis, N ;

Iatrou, H ;

Pitsikalis, M ;

Pispas, S ;

Avgeropoulos, A .

PROGRESS IN POLYMER SCIENCE, 2005, 30 (07) :725-782

[16]

Hiemenz P.C., 2016, PRINCIPLES COLLOID S

[17] On the origins of morphological complexity in block copolymer surfactants [J].

Jain, S ;

Bates, FS .

SCIENCE, 2003, 300 (5618) :460-464

[18] Combined SANS and SAXS studies on alkali metal dodecyl sulphate micelles [J].

Joshi, J. V. ;

Aswal, V. K. ;

Goyal, P. S. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (19)

[19] Spontaneous formation of vesicles from complexes of block ionomers and surfactants [J].

Kabanov, AV ;

Bronich, TK ;

Kabanov, VA ;

Yu, K ;

Eisenberg, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (38) :9941-9942

[20] Aggregation and critical micelle concentrations of polystyrene-b-poly(sodium acrylate) and polystyrene-b-poly(acrylic acid) micelles in organic media [J].

Khougaz, K ;

Zhong, XF ;

Eisenberg, A .

MACROMOLECULES, 1996, 29 (11) :3937-3949

← 1 2 3 4 5 6 →