Polyaniline prepared in the presence of various acids - 2. Thermal stability of conductivity

被引：94

作者：

Prokes, J

Stejskal, J

机构：

[1] Charles Univ, Fac Math & Phys, Prague 12161 2, Czech Republic

[2] Acad Sci Czech Republ, Inst Macromol Chem, Prague 16206 6, Czech Republic

来源：

POLYMER DEGRADATION AND STABILITY | 2004年 / 86卷 / 01期

关键词：

polyaniline; conducting polymer; conductivity; thermal stability of conductivity; ageing; acids; deprotonation;

D O I：

10.1016/j.polymdegradstab.2004.04.012

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyaniline was prepared by the oxidative polymerisation of aniline with ammonium peroxydisulfate in the presence of various acids. Both inorganic and organic acids have been included. Amorphous and semi-crystalline polyanilines have been obtained by polymerisations at 20 degreesC and -50 degreesC, respectively. The conductivity of polyaniline pellets has been measured in situ during their thermal ageing at 173 +/- 1 degreesC and the observed differences in the electrical stability are discussed. The best stability of conductivity at elevated temperature was achieved with samples protonated with methanesulfonic or hydrofluoric acid. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：187 / 195

页数：9

共 28 条

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