Antiferromagnetic pairing in polyaniline salt-zeolite nanocomposites

被引：24

作者：

Frisch, HL ^{[1
]}

Song, HH

Ma, JQ

Rafailovich, M

Zhu, SM

Yang, NL

Yan, XZ

机构：

[1] SUNY Albany, Dept Chem, Albany, NY 12222 USA

[2] SUNY Stony Brook, Stony Brook, NY 11794 USA

[3] CUNY Coll Staten Isl, Dept Chem, Staten Isl, NY 10314 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2001年 / 105卷 / 47期

关键词：

D O I：

10.1021/jp012278z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polyaniline (PANI) zeolite composites have been prepared by oxidative polymerization of anilinein the presence of zeolite 13X, producing composite materials with PANI/zeolite weight ratios from about 0.5 to 55. The DC conductivity of the composite materials decreased exponentially with zeolite weight fraction. Pure PANI was paramagnetic while the PANI/zeolite complexes with weight ratios larger than 20 showed an appreciable antiferromagnetic component as indicated by temperature dependence of their electron spin resonance spectra. This novel antiferromagnetism is speculated to arise from pi -dimer pairing of PANI chain layers stacking on the zeolite particle surface.

引用

页码：11901 / 11905

页数：5

共 17 条

[1] A COMPARISON OF THE MOLECULAR-WEIGHTS OF POLYANILINE SAMPLES OBTAINED FROM GEL-PERMEATION CHROMATOGRAPHY AND SOLID-STATE N-15 NMR-SPECTROSCOPY [J].