Fabrication of polyelectrolyte multilayer films comprising nanoblended layers

被引：103

作者：

Cho, J ^{[1
]}

Quinn, JF ^{[1
]}

Caruso, F ^{[1
]}

机构：

[1] Univ Melbourne, Ctr Nanosci & Nanotechnol, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 08期

关键词：

D O I：

10.1021/ja039830d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polyelectrolyte multilayer thin films were prepared via the alternate deposition of poly(allylamine hydrochloride) (PAH) and a blend of poly(acrylic acid) (PAA) and poly(styrenesulfonate) (PSS). When the pH of the blend solution was 3.5, the presence of PAA in this solution significantly increased the total film thickness. With only 10 wt % PAA in the blend adsorption solution, a large increase in film thickness was observed (92 nm cf. 18 nm). It was also demonstrated that the total amount of PSS adsorbed was enhanced by the presence of PAA in the blend solution, showing that the blend solution composition influenced that of the multilayer films. Thin films prepared with nanoblended layers also showed improved pH stability, because they exhibited reduced film rearrangement upon exposure to acidic conditions (pH = 2.5). Copyright © 2004 American Chemical Society.

引用

页码：2270 / 2271

页数：2

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