Effect of dopant and clay on nanocomposites of polyaniline (PAN) intercalated into Na+-montmorillonite (N+-MMT)

被引：51

作者：

Kim, BH ^{[1
]}

Jung, JH

Kim, JW

Choi, HJ

Joo, J

机构：

[1] Korea Univ, Dept Phys, Seoul 136701, South Korea

[2] Korea Univ, Ctr Electro & Photo Respons Mol, Seoul 136701, South Korea

[3] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

来源：

SYNTHETIC METALS | 2001年 / 121卷 / 1-3期

关键词：

polyaniline and derivatives; transport measurements; X-ray diffraction; nanocomposite;

D O I：

10.1016/S0379-6779(00)01288-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The nanocomposites of polyaniline (PAN) and Na+-montmorilionite (Na+- MMT) were synthesized by emulsion polymerization using dodecylbenzenesulfonic acid (DBSA) or camphorsulfonic acid (CSA) as dopant and emulsifier. In the X-ray diffraction patterns of the systems, we observed that the layer of conducting PAN-DBSA or PAN-CSA between the clay layers was in nanoscale layers (< 10 Angstrom). The temperature dependence of dc conductivity [sigma (dc)(T)] for the nanocomposites followed a quasi-one dimensional (1D) variable range hopping (VRH) model. The sigma (dc)(T) varied with the dopant used and the molar ratio. From temperature dependent EPR experiments, we obtained the magnetic susceptibility and the line width of the system. The Na+-MMT clay layer plays important role for interchain interaction of the system. The effects of dopant and the layer of Na+-MMT on charge transport and structure are discussed.

引用

页码：1311 / 1312

页数：2

共 6 条

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[3]

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