Organic-inorganic polypyrrole-surface modified SiO2 hybrid nanocomposites: a facile and green synthetic approach

Title
Organic-inorganic polypyrrole-surface modified SiO2 hybrid nanocomposites: a facile and green synthetic approach
Author(s)
심재진할도리유바라즈임권택[임권택]
Keywords
SUPERCRITICAL CARBON-DIOXIDE; POLYMERIZATION; COMPOSITES; PARTICLES; CO2
Issue Date
201006
Publisher
WILEY-BLACKWELL
Citation
POLYMERS FOR ADVANCED TECHNOLOGIES, v.21, no.6, pp.424 - 429
Abstract
Organic-inorganic hybrid nanocomposites composed of conductive polypyrrole (PPy) and surface modified silica (SiO2) were successfully prepared through an in situ chemical oxidative polymerization in supercritical carbon dioxide (scCO(2)). SiO2 nanoparticles were surface modified using 3-methacryloxypropyltrimethoxysilane (MPTMS) in order to disperse well in the medium. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) showed that the SiO2 nanoparticles were encapsulated into the polymer. UV-visible spectra of the diluted colloidal dispersions of PPy/SiO2 hybrid nanocomposites were similar to those of PPy system. Fourier transform infrared spectroscopy (FT-IR) suggested the strong interaction between PPy and SiO2. Surface characterizations of nanocomposites were described by X-ray photoelectron spectroscopy (XPS). The nanocomposites synthesized in scCO2 have been shown to possess higher electrical conductivity and thermal stability. Copyright (C) 2009 John Wiley & Sons, Ltd.
URI
http://hdl.handle.net/YU.REPOSITORY/22394http://dx.doi.org/10.1002/pat.1448
ISSN
1042-7147
Appears in Collections:
공과대학 > 화학공학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE