Composite of polyaniline containing iron oxides

被引：72

作者：

Aphesteguy, JC ^{[1
]}

Jacobo, SE ^{[1
]}

机构：

[1] Univ Buenos Aires, Fac Ingn, LAFMACEL, Buenos Aires, DF, Argentina

来源：

PHYSICA B-CONDENSED MATTER | 2004年 / 354卷 / 1-4期

关键词：

polyaniline (PANI); electrical-magnetic properties; nanometer materials;

D O I：

10.1016/j.physb.2004.09.053

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A composite of polyaniline (PANI) containing iron oxides with nanometer size was prepared by a chemical method. Polymer adsorption on the surface of magnetite particles was investigated. The electrical and ferromagnetic properties of the composites were measured as a function of the pH value of the reaction solution during polymerization. The conductivity of the composites at room temperature decreases with the increase of the pH as the doping level in the composite decreased. For the basic preparation conditions, the resulting PANI-FexOy composite can be attracted by a magnet at room temperature and shows an insulating behavior. Doping of PANI with acids leads to electrical conducting properties of ferromagnetic composites. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：224 / 227

页数：4

共 11 条

[1] COUNTERION INDUCED PROCESSIBILITY OF CONDUCTING POLYANILINE AND OF CONDUCTING POLYBLENDS OF POLYANILINE IN BULK POLYMERS [J].

CAO, Y ;

SMITH, P ;

HEEGER, AJ .

SYNTHETIC METALS, 1992, 48 (01) :91-97

[2] Magnetic and conductive Fe3O4-polyaniline nanoparticles with core-shell structure [J].

Deng, JG ;

He, CL ;

Peng, YX ;

Wang, JH ;

Long, XP ;

Li, P ;

Chan, ASC .

SYNTHETIC METALS, 2003, 139 (02) :295-301

[3] Functional polymer microspheres [J].

Kawaguchi, H .

PROGRESS IN POLYMER SCIENCE, 2000, 25 (08) :1171-1210

[4]

LIN J, 2000, J POLYM SCI A, V38, P2734

[5] MAGNETIC CELLULOSE FIBERS AND PAPER - PREPARATION, PROCESSING AND PROPERTIES [J].

MARCHESSAULT, RH ;

RIOUX, P ;

RAYMOND, L .

POLYMER, 1992, 33 (19) :4024-4028

[6]

PEDRO GR, 2001, ADV MATER, V13, P163

[7]

Wan MX, 1997, J POLYM SCI POL CHEM, V35, P2129, DOI 10.1002/(SICI)1099-0518(199708)35:11<2129::AID-POLA2>3.0.CO

[8]

2-T

[9]

Wan MX, 1998, J POLYM SCI POL CHEM, V36, P2749, DOI 10.1002/(SICI)1099-0518(19981115)36:15<2749::AID-POLA11>3.0.CO

[10]

2-O

← 1 2 →