Magnetic susceptibility and electron spin resonance investigations of polyaniline and polyaniline-poly(methyl methacrylate) blend

被引:13
作者
Kahol, PK [1 ]
机构
[1] Wichita State Univ, Dept Phys, Wichita, KS 67260 USA
关键词
polymers; electronic transport;
D O I
10.1016/S0038-1098(00)00408-7
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Magnetic susceptibility and electron spin resonance (ESR) investigations of polyaniline and polyaniline-poly(methyl methacrylate) (40:60) blend, both doped with paratoluenesulfonic acid, are presented as a function of temperature on unannealed and annealed samples. It is shown that magnetic susceptibility measurements yield the same value for density of states at the Fermi level as the one obtained from heat capacity measurements. Furthermore, ESR and magnetic susceptibility measurements are shown to indicate different structural order in polyaniline and the polyaniline-poly(methyl methacrylate) blend. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:37 / 39
页数:3
相关论文
共 8 条
[1]  
[Anonymous], HDB CONDUCTING POLYM
[2]   INSULATOR-TO-METAL TRANSITION IN POLYANILINE [J].
GINDER, JM ;
RICHTER, AF ;
MACDIARMID, AG ;
EPSTEIN, AJ .
SOLID STATE COMMUNICATIONS, 1987, 63 (02) :97-101
[3]   High temperature magnetic susceptibility studies of sulfonated polyanilines [J].
Kahol, PK ;
Raghunathan, A ;
McCormick, BJ ;
Epstein, AJ .
SYNTHETIC METALS, 1999, 101 (1-3) :815-816
[4]   An electron-spin-resonance study of polymer interactions with moisture in polyaniline and its derivatives [J].
Kahol, PK ;
Dyakonov, AJ ;
McCormick, BJ .
SYNTHETIC METALS, 1997, 89 (01) :17-28
[5]   MOISTURE EFFECTS ON THE MAGNETIC STATE IN POLYANILINE [J].
KAHOL, PK ;
GUAN, H ;
MCCORMICK, BJ .
PHYSICAL REVIEW B, 1991, 44 (18) :10393-10395
[6]   Low-temperature heat capacities of polyaniline and polyaniline polymethylmethacrylate blends [J].
Raghunathan, A ;
Kahol, PK ;
Ho, JC ;
Chen, YY ;
Yao, YD ;
Lin, YS ;
Wessling, B .
PHYSICAL REVIEW B, 1998, 58 (24) :15955-15958
[7]   Electrical conductivity and magneto-resistance studies on polyaniline-PMMA blends at very low temperature [J].
Srinivasan, D ;
Raghunathan, A ;
Natarajan, TS ;
Rangarajan, G ;
Subramaniam, CK ;
Wessling, B .
CZECHOSLOVAK JOURNAL OF PHYSICS, 1996, 46 :2035-2036
[8]   Polyaniline on the metallic side of the insulator-to-metal transition due to dispersion: the basis for successful nano-technology and industrial applications of organic metals [J].
Wessling, B .
SYNTHETIC METALS, 1999, 102 (1-3) :1396-1399