Influence of humid atmosphere on phase separation in polyaniline-polystyrene thin films

被引：26

作者：

Bernasik, A

Haberko, J

Wlodarczyk-Miskiewicz, J

Raczkowska, J

Luzny, W

Budkowski, A

Kowalski, K

Rysz, J

机构：

[1] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

[2] Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland

[3] AGH Univ Sci & Technol, Fac Met & Mat Sci, PL-30059 Krakow, Poland

来源：

SYNTHETIC METALS | 2005年 / 155卷 / 03期

关键词：

polyaniline; phase separation; SIMS;

D O I：

10.1016/j.synthmet.2005.10.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thin films composed of polystyrene (PS) and polyaniline (PANI) of different molecular weights doped with camphorsulfonic acid (CSA) prepared by spin-casting onto a gold substrate from chloroform in dry and humid atmosphere, were examined by secondary ion mass spectrometry (SIMS) using both depth profiling and mapping modes. In dry atmosphere, strong PANI segregation to the substrate was observed. Humidity inhibited this segregation and led to the separation of PANI and CSA, and the dopant segregated independently to the free surface. This effect was stronger for PANI with lower molecular weight. Dots, lines and seaweed patterns were observed after spin-casting in humid atmosphere. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：516 / 522

页数：7

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