Thermochromism in optically active polyaniline salts

被引：52

作者：

Norris, ID ^{[1
]}

Kane-Maguire, LAP ^{[1
]}

Wallace, GG ^{[1
]}

机构：

[1] Univ Wollongong, Dept Chem, Intelligent Polymer Res Inst, Wollongong, NSW 2522, Australia

来源：

MACROMOLECULES | 1998年 / 31卷 / 19期

关键词：

D O I：

10.1021/ma971832t

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Optically active polyaniline salts PAn.(+)-HCSA (HCSA = 10-camphorsulfonic acid) have been shown to have different conformations for their polyaniline chains depending on whether they are synthesized chemically or electrochemically. These conformations are assigned as "compact coil" and partial "expanded coil", respectively. An "expanded" to "compact" coil transformation is induced by heating to 140 degrees C for 10 min, as evidenced by UV-visible and circular dichroism spectral studies. At temperatures greater than 180 degrees C, progressive dedoping of the PAn.(+)-HCSA salt films occurs, with the formation of racemic emeraldine base.

引用

页码：6529 / 6533

页数：5

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