Young's modulus of polyelectrolyte multilayers from microcapsule swelling

被引：101

作者：

Vinogradova, OI

Andrienko, D

Lulevich, VV

Nordschild, S

Sukhorukov, GB

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[2] Russian Acad Sci, Inst Phys Chem, Lab Phys Chem Modified Surfaces, Moscow 119991, Russia

[3] Max Planck Inst Colloid & Interface Res, D-14424 Potsdam, Germany

来源：

MACROMOLECULES | 2004年 / 37卷 / 03期

关键词：

D O I：

10.1021/ma0350213

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We measure Young's modulus of a free polyelectrolyte multilayer film by studying osmotically induced swelling of polyelectrolyte multilayer microcapsules filled with the polyelectrolyte solution. Different filling techniques and core templates were used for the capsule preparation. Varying the concentration of the polyelectrolyte inside the capsule, its radius and the shell thickness yielded an estimate of Young's modulus of the order of 100 MPa. This corresponds to an elastomer and reflects strong interactions between polyanions and polycations in the multilayer.

引用

页码：1113 / 1117

页数：5

共 36 条

[1]

[Anonymous], THEORY ELASTICITY CO

[2]

Barrat JL, 1996, ADV CHEM PHYS, V94, P1, DOI 10.1002/9780470141533.ch1

[3]

Bäumler H, 2000, J MICROENCAPSUL, V17, P651

[4] Ultrathin multilayer polyelectrolyte films on gold: Construction and thickness determination .1. [J].