XPS STUDIES OF ENVIRONMENTAL STABILITY OF POLYPYRROLE-POLY(VINYL ALCOHOL) COMPOSITES

被引：73
|
作者：
BENSEDDIK, E
MAKHLOUKI, M
BERNEDE, JC
LEFRANT, S
PRON, A
机构：
[1] UNIV NANTES,FAC SCI & TECH,PHYS MAT ELECTR LAB,F-44072 NANTES 03,FRANCE
[2] ACAD MIN & MET,DEPT MAT SCI & CERAM,PL-30059 KRAKOW,POLAND
来源：
SYNTHETIC METALS | 1995年 / 72卷 / 03期
关键词：
STABILITY; SPECTROSCOPY; COMPOSITES; POLYPYRROLE; POLY(VINYL ALCOHOL);
D O I：
10.1016/0379-6779(95)03285-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we report a study on the aging effects of polypyrrole-poly(vinyl alcohol) composites. A decrease of the conductivity is observed when samples are stored in ambient atmosphere, whereas they are stable in inert environment. A careful analysis of the studied samples has been performed by using both scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). It is known that oxidation processes occur, breaking the conjugation of the polymeric unsaturated chains and this is the main cause for the non-stability of the composites in ambient conditions. Consequently, several oxygen-containing groups are formed in the polymer backbone, as deduced from the analysis of the C, O, N and Cl binding energies.
引用
收藏
页码：237 / 242
页数：6
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