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纳米管结构聚苯胺的电阻率和磁化率
引用本文:龙云泽,陈兆甲,张志明,万梅香,郑萍,王楠林. 纳米管结构聚苯胺的电阻率和磁化率[J]. 物理学报, 2003, 52(1): 175-179. DOI: 10.7498/aps.52.175
作者姓名:龙云泽  陈兆甲  张志明  万梅香  郑萍  王楠林
作者单位:(1)西北核技术研究所,西安69信箱13分箱 710024; (2)中国科学院化学研究所分子科学中心,有机固体实验室,北京 100080; (3)中国科学院物理研究所极端条件物理实验室,北京 100080
基金项目:国家自然科学基金(批准号:29974037和50133010)资助的课题.
摘    要:研究了用自组装法制备的质子酸掺杂的纳米管结构聚苯胺的电阻率(ρ)和磁化率随温度变化的依赖关系,讨论了质子酸掺杂浓度、不同对阴离子以及苯胺单体与质子酸聚合时反应浓度对纳米管结构聚苯胺电学性质的影响.实验结果表明,lnρ和T-1/2呈线性关系,不同对阴离子对聚苯胺的电阻率影响很大,随着质子酸掺杂浓度以及苯胺单体与质子酸聚合时反应浓度的增大,聚苯胺的电阻率明显减小;而且,其磁化率可以表示为与温度无关的泡利顺磁性和符合居里定律的顺磁性之和.

关 键 词:聚苯胺  纳米管  电阻率  磁化率
收稿时间:2002-03-22
修稿时间:2002-03-22

Resistivity and magnetic susceptibility of nanotubular polyaniline doped with protonic acids
Long Yun-Ze,Chen Zhao-Ji,Zhang Zhi-Ming,Wan Mei-Xiang,Zheng Ping,Wang Nan-Lin,He Chao-Hui,Geng Bin,Yang Hai-Liang,Chen Xiao-Hu,Wang Yan-Ping and Li Guo-Zheng. Resistivity and magnetic susceptibility of nanotubular polyaniline doped with protonic acids[J]. Acta Physica Sinica, 2003, 52(1): 175-179. DOI: 10.7498/aps.52.175
Authors:Long Yun-Ze  Chen Zhao-Ji  Zhang Zhi-Ming  Wan Mei-Xiang  Zheng Ping  Wang Nan-Lin  He Chao-Hui  Geng Bin  Yang Hai-Liang  Chen Xiao-Hu  Wang Yan-Ping  Li Guo-Zheng
Abstract:Nanotubular polyaniline (PANI) doped with protonic acids have been synthesized by a “template-free”method. The temperature dependence of resistivity (ρ) and magnetic susceptibility has been studied. The influences of different protonic acids (counterions), doping concentration and the synthesizing concentration of dopant on resistivity also have been investigated. It is obvious from experimental results that ln ρ is linear against T-1/2. With increasing acidity of protonic acids ,doping concentration and the synthesizing concentration of dopant, the resistivity of the samples decreases, and the magnetic susceptibility can be written as a sum of a temperature-independent Pauli spin susceptibility term and a Curie-law term.
Keywords:polyaniline   nanotubes   resistivity   magnetism
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