Aggregation and interchain ''self'' doping in emeraldine base

被引：23

作者：

Long, SM

Brenneman, KR

Saprigin, A

Kohlman, RS

Epstein, AJ

Angelopoulos, M

Buchwalter, SL

Rossi, A

Zheng, W

MacDiarmid, AG

机构：

[1] OHIO STATE UNIV,CHEM PHYS PROGRAM,COLUMBUS,OH 43210

[2] OHIO STATE UNIV,DEPT CHEM,COLUMBUS,OH 43210

[3] IBM CORP,DIV RES,TJ WATSON RES CTR,YORKTOWN HTS,NY 10598

[4] UNIV PENN,DEPT CHEM,PHILADELPHIA,PA 19104

来源：

SYNTHETIC METALS | 1997年 / 84卷 / 1-3期

关键词：

polyaniline and derivatives; solution processing; electron spin resonance; UV-Vis-NIR absorption;

D O I：

10.1016/S0379-6779(96)04157-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report gel permeation chromatography, electron paramagnetic resonance and optical absorption measurements on the emeraldine base (EB) form of polyaniline synthesized using different oxidant/aniline ratios in the range of 0.25 to 1.0. A concentration of localized paramagnetic defects and sub bandgap absorption is observed which correlate with the fraction of aggregated EB suggesting that radical formation is occurring within the aggregates. This correlation is observed in EB synthesized at different oxidant/aniline ratios and in heat treated EB. Further, we propose that interchain interactions within the aggregates give rise to a form of ''self'' doping in EB.

引用

页码：809 / 810

页数：2