Surface texture of poly(styrenesulfonate sodium salt) and poly(diallyldimethylammonium chloride) micron-sized multilayer capsules:: A scanning force and confocal microscopy study

被引：51

作者：

Gao, CY

Leporatti, S

Donath, E ^{[1
]}

Möhwald, H

机构：

[1] Max Planck Inst Colloids & Interfaces, D-14424 Golm, Germany

[2] Zhejiang Univ, Dept Polymer, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2000年 / 104卷 / 30期

关键词：

D O I：

10.1021/jp000615i

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：

Ultrathin polyelectrolyte capsules fabricated by stepwise assembly of poly(styrenesulfonate Sodium salt) and poly(diallyldimethylammonium chloride) are examined by confocal laser scanning microscopy and scanning force microscopy. The capsule surface is composed of grains of 124 +/- 10 nm in diameter with a roughness of similar to 13 nm. These grains are formed by laterally segregated polyelectrolyte complexes. Osmotically and annealing-induced capsule swelling facilitated further grain segregation together with a capsule surface area increase. Incubation in salt solution induced capsule shrinking and grain aggregation.

引用

页码：7144 / 7149

页数：6

共 24 条

[1] Nanoengineering of inorganic and hybrid hollow spheres by colloidal templating [J].