Membrane densification of heated polyelectrolyte multilayer capsules characterized by soft X-ray microscopy

被引：39

作者：

Dejugnat, Christophe

Koehler, Karen

Dubois, Monique

Sukhorukov, Gleb B.

Moehwald, Helmuth

Zemb, Thomas

Guttmann, Peter

机构：

[1] CEA Valrho, Ctr Marcoule, UMR 5257, Inst Chim Separat Marcoule, F-30207 Bagnols Sur Ceze, France

[2] Max Planck Inst Colloids & Interface, D-14424 Potsdam, Germany

[3] Queen Mary Univ London, Dept Mat, London E1 4NS, England

[4] CEA Saclay, DRECAM, SCM, LCF,URA331, F-91191 Gif Sur Yvette, France

[5] Univ Gottingen, Inst Rontgenphys, BESSY, D-12489 Berlin, Germany

来源：

ADVANCED MATERIALS | 2007年 / 19卷 / 10期

关键词：

D O I：

10.1002/adma.200602643

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Soft X-Ray microscopy is used for the sensitive hollow polyelectrolyte microcapsules made of poly(sodium styrene sulfonate) and poly(diallyl dimethyl ammonium chloride) (see figure). Upon heating to 90 degrees C they shrink and the polymer membrane becomes denser. The analysis of such systems in water shows, at 20 nm resolution, that membrane densification is accompanied by exclusion of about 50% of the hydration water, leading to homogeneously filled dense spheres without any loss of material.

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页码：1331 / +

页数：7

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