Synthesis and characterization of polypyrrole-TiO2 nanocomposites in supercritical CO2

被引：51

作者：

Yuvaraj, Haldorai ^{[1
]}

Park, Eun Ju ^{[1
]}

Gal, Yeong-Soon ^{[2
]}

Lim, Kwon Taek ^{[1
]}

机构：

[1] Pukyong Natl Univ, Div Image & Informat Engn, Pusan 608739, South Korea

[2] Kyung Il Univ, Coll Engn, Polymer Chem Lab, Gyeongsang Buk Do, South Korea

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2008年 / 313卷

关键词：

supercritical carbon dioxide; semiconducting polymer; nanocomposites; polypyrrole; titanium dioxide;

D O I：

10.1016/j.colsurfa.2007.04.114

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：

The semiconducting polymer and inorganic metal oxide nanocomposites composed of polypyrrole/titanium dioxide (PPy/TiO2) were synthesized by in situ chemical oxidative polymerization of pyrrole in the presence of TiO2 particles in supercritical carbon dioxide (scCO(2)). TiO2 nanoparticles with average particle size of 5 nm were surface modified by 3-(trimethoxysilyl)propyl methacrylate (gamma-MPS) in order to disperse effectively in CO2 before the polymerization. Transmission electron microscope (TEM) image of the nanocomposite revealed well-dispersed TiO2 particles in PPy matrix. The nanocomposites were also confirmed by X-ray diffraction (XRD), thermogravimetric analysis (TGA) and FT-IR spectroscopy. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：300 / 303

页数：4

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