Coating of multiwalled carbon nanotubes with polymer nanospheres through microemulsion polymerization

被引：143

作者：

Reddy, Kakarla Raghava ^{[1
]}

Sin, Byung Cheol ^{[2
]}

Yoo, Chi Ho ^{[1
]}

Sohn, Daewon ^{[3
]}

Lee, Youngil ^{[1
]}

机构：

[1] Univ Ulsan, Dept Chem, Ulsan 680749, South Korea

[2] Ulsan Fine Chem Ind Ctr, Dept Res & Dev, Ulsan 681340, South Korea

[3] Hanyang Univ, Dept Chem, Seoul 133791, South Korea

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 340卷 / 02期

关键词：

Microemulsion polymerization; Conjugated polymer; Carbon nanotubes; Nanocomposites; Morphology; Electrical conductivity; COMPOSITE NANOPARTICLES; FUNCTIONALIZATION;

D O I：

10.1016/j.jcis.2009.08.044

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：

We report a simple and noncovalent method for coating multiwalled carbon nanotubes (MWCNTs) with polyaniline (PANI) nanospheres using a microemulsion polymerization method. In this method, aniline polymerization is performed with MWCNTs in the presence of sodium dodecyl sulfate (SIDS), which serves as both a surfactant and a dopant. Morphological, structural, thermal, and electrical properties of MWCNT-PANI nanocomposites were analyzed. The TEM results of the nanocomposites prepared with surfactant reveal that 30-50-nm-diameter PANI nanospheres were coated on the surface of the MWCNTs. Composites prepared without surfactant were found to be in core-sheath-type cable structures. The conductivities of the nanocomposites synthesized through microemulsion polymerization were found to be one order of magnitude higher than both the conductivities of pure PANI and the composites prepared via in situ chemical polymerization without an assisting SDS surfactant. The mechanism for the formation of nanostructured composites is presented. Crown Copyright (C) 2009 Published by Elsevier Inc. All rights reserved.

引用

页码：160 / 165

页数：6

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